An  Upper Level High Pressure Ridge brings sunshine and slowly warming temperatures. The graphics for days 1-3 show a cold frontal system sliding  in between Tuesday and Tuesday night. The graphics for days 3-7  Thursday through Monday show no frontal activity moving toward the coast or through the Pacific Northwest through the period until a cold front moves in next Monday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.18.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly clear this evening, mostly cloudy with patchy fog late tonight,
• Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
• Some AM clouds,  sunny Wednesday, clear at night,
• Sunny Thursday, then clear Thursday night.
• lows 53-56 cooling to 54 Wednesday night warning to 55 Thursday night highs near 76.
• Mostly sunny and a bit cooler Friday, mostly clear Friday night,
• Mostly sunny and a bit warmer Saturday, mostly clear in the evening,  partly cloudy late at night,
• Mostly sunny Sunday, mostly clear Sunday night,
• Then mostly sunny and a bit cooler Monday.
• highs 73-75 cooling to 74 Friday and Saturday lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Partly cloudy this evening, mostly clear late tonight,
• Sunny and a bit warmer Tuesday, partly cloudy in the evening, clear Tuesday night,
• Sunny Wednesday, clear at night,
• Sunny and warmer Thursday, then clear Thursday night.
• free air freezing level 14,000 ft. tonight and Tuesday, 13,000 ft. Tuesday night through Wednesday night, then 16,000 ft. Thursday and Thursday night.
• lows 45-53 highs 73-82.
• Sunny and a bit warmer Friday, mostly clear Friday night,
• Then sunny and a bit cooler Saturday, Sunday, and Monday,mostly clear each night.
• free air freezing level 16,000 ft. Thursday through Saturday night, then 15,000 ft. Sunday through Monday.
• 88-82 lows 56-53.

An  Upper Level High Pressure Ridge takes over bringing sunshine and warmer temperatures. The graphics for days 1-3 show a cold frontal system sliding  off to the east, and another one offshore Tuesday. The graphics for days 3-7  Thursday through Monday show no frontal activity moving toward the coast or through the Pacific Northwest through the period until a cold front slides in next Monday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.14.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Some AM clouds with patchy coastal fog, sunny and a bit cooler this afternoon, mostly clear tonight,
• Mostly sunny and a bit warmer Tuesday, mostly clear in the evening, partly cloudy late at night,
• Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
• highs 73-74 lows 53-56 cooling to 54 Wednesday night.
• Mostly sunny Thursday, mostly clear Thursday night,
• Mostly sunny and a bit cooler Friday, mostly clear at night,
• Mostly sunny Saturday, partly cloudy Saturday night,
• Then partly cloudy Sunday.
• highs 73-75 cooling to 74 Friday and Saturday lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• AM clouds and sun, sunny and a bit warmer this afternoon, mostly clear tonight,
• Sunny and a bit warmer Tuesday, mostly clear at night,
• Sunny and a bit cooler Wednesday, then clear Wednesday night.
• free air freezing level 14,000 ft. tonight, 14,000 ft. Tuesday, 13,000 ft. Tuesday night and Wednesday, then 14,000 ft. Wednesday.
• highs 70-74 cooling to 73 Wednesday lows 45-47.
• Sunny and warmer Thursday, clear Thursday night,
• Sunny and a bit warmer Friday, mostly clear at night,
• Then sunny and a bit cooler Saturday and Sunday, mostly clear Saturday night.
• free air freezing level 13,000 ft. Wednesday, 15,000 ft. Wednesday night and Thursday, then 16,000 ft. Thursday through Saturday night, then 15,000 ft. Sunday.
• 82-87 cooling to 83 Sunday lows 53-56 cooling to 54 Sunday.

An  Upper Level High Pressure Ridge takes over bringing sunshine and warmer temperatures. The graphics for days 1-3 show a cold frontal system offshore Tuesday. The graphics for days 3-7  Wednesday through Sunday show no frontal activity moving toward the coast or through the Pacific Northwest through the period.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.14.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy this evening, partly cloudy with patchy coastal fog late tonight,
• Some AM clouds with patchy coastal fog, sunny and a bit cooler Monday afternoon, mostly clear Monday night,
• Mostly sunny and a bit warmer Tuesday, mostly clear in the evening, partly cloudy late at night,
• Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
• lows 54-53 warming to 56 Tuesday night highs 73-74.
• Mostly sunny Thursday, mostly clear Thursday night,
• Mostly sunny and a bit cooler Friday, mostly clear at night,
• Mostly sunny Saturday, partly cloudy Saturday night,
• Then partly cloudy Sunday.
• highs 73-75 cooling to 74 Friday and Saturday lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy tonight,
• AM clouds and sun, sunny and a bit warmer Monday afternoon, mostly clear Monday night,
• Sunny and a bit warmer Tuesday, mostly clear at night,
• Sunny and a bit cooler Wednesday, then clear Wednesday night.
• free air freezing level 13,000 ft. tonight. 13,000 ft. rising to 14,000 ft. Monday, 14,000 ft. Monday night, 14,000 ft. Tuesday, 13,000 ft. Tuesday night and Wednesday, then 14,000 ft. Wednesday.
• lows 47-45 warming back to 47 Wednesday night highs 70-74 cooling to 73 Wednesday.
• Sunny and warmer Thursday, clear Thursday night,
• Sunny and a bit warmer Friday, mostly clear at night,
• Then sunny and a bit cooler Saturday and Sunday, mostly clear Saturday night.
• free air freezing level 13,000 ft. Wednesday, 15,000 ft. Wednesday night and Thursday, then 16,000 ft. Thursday through Saturday night, then 15,000 ft. Sunday.
• 82-87 cooling to 83 Sunday lows 53-56 cooling to 54 Sunday.

An Upper Level Low Pressure Trough (“U”Shape) moves through early this AM. Then an Upper Level High Pressure Ridge takes over bringing sunshine and warmer temperatures. The graphics for days 1-3 show a cold frontal system that moved through the Pacific Northwest Saturday. The graphics for days 3-7  Wednesday through Sunday show a cold front moved through Wednesday and a cold front well to our northwest next Sunday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.14.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• AM clouds with patchy fog, partly cloudy and a bit warmer this afternoon, mostly cloudy this evening, partly cloudy with patchy fog late tonight,
• Some AM clouds with patchy fog, sunny Monday afternoon, mostly clear at night,
• Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
• highs 73-74 lows 54-53 warming to 56 Tuesday night.
• Mostly sunny and a bit cooler Wednesday, clear Wednesday night,
•  Sunny and a bit warmer Thursday, clear at night,
• Sunny and a bit cooler Friday, clear Friday night,
• Then sunny Saturday.
• highs 73-75 cooling to 74 Friday and Saturday lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly sunny and a bit warmer today, mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy tonight,
• AM clouds and sun, sunny Monday afternoon, mostly clear at night,
• Sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
• free air freezing level 13,000 ft. today, snow level above 8,000 ft. tonight, free air freezing level 13,000 ft. rising to 14,000 ft. Monday, then 14,000 ft. Monday night through Tuesday night.
• highs 72-70 warming to 73 Tuesday lows 47-45 warming to 46 Tuesday night.
• Sunny and a bit warmer Wednesday and Thursday, clear both nights,
• Sunny and a bit warmer Friday, clear Friday night,
• Then sunny Saturday.
• free air freezing level 13,000 ft. Wednesday, 15,000 ft. Wednesday night and Thursday, then 16,000 ft. Thursday through Saturday.
• 73-84 cooling to 82 Saturday lows 47-53.

An Upper Level Low Pressure Trough (“U”Shape) moves through overnight and early this AM. Then an Upper Level High Pressure Ridge takes over bringing sunshine and warmer temperatures.The graphics for days 1-3 show a cold frontal system moving through the Pacific Northwest today. The graphics for days 3-7  Tuesday through Saturday show a cold front moving through Tuesday and Wednesday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.14.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Partly cloudy this evening, mostly cloudy with patchy fog late tonight,
• AM clouds with patchy fog, partly cloudy and a bit warmer Sunday afternoon, mostly cloudy in the evening, partly cloudy with patchy fog late Sunday night,
• Some AM clouds with patchy fog, sunny Monday afternoon, mostly clear at night,
• Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
• lows 56-53 warming back to 56 Tuesday night highs 73-74.
• Mostly sunny and a bit cooler Wednesday, clear Wednesday night,
•  Sunny and a bit warmer Thursday, clear at night,
• Sunny and a bit cooler Friday, clear Friday night,
• Then sunny Saturday.
• highs 73-75 cooling to 74 Friday and Saturday lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy tonight,
• Mostly sunny and a bit warmer Sunday, mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy Sunday night,
• AM clouds and sun, sunny Monday afternoon, mostly clear at night,
• Sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
• free air freezing level 13,000 ft. tonight and Sunday, snow level above 8,000 ft. Sunday night, free air freezing level 13,000 ft. rising to 14,000 ft. Monday, then 14,000 ft. Monday night through Tuesday night.
• lows 45-47 cooling to 45 Monday night warming to 46 Tuesday night highs 72-70 warming to 73 Tuesday.
• Sunny and a bit warmer Wednesday and Thursday, clear both nights,
• Sunny and a bit warmer Friday, clear Friday night,
• Then sunny Saturday.
• free air freezing level 13,000 ft. Wednesday, 15,000 ft. Wednesday night and Thursday, then 16,000 ft. Thursday through Saturday.
• 73-84 cooling to 82 Saturday lows 47-53.

An Upper Level Low Pressure Trough (“U”Shape) moves through overnight and early this AM (along with a surface cold front). Then an Upper Level High Pressure Ridge takes over bringing sunshine and warmer temperatures.The graphics for days 1-3 show a cold frontal system moving through the Pacific Northwest by this morning. The graphics for days 3-7  Tuesday through Saturday show a cold front moving through by early Tuesday and then another cold front falls apart as it pushes through Wednesday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.14.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Cloudy with a good (50%) chance of AM coastal showers and just partly cloudy and a bit cooler this afternoon while AM inland showers likely (70%) and a bit cooler with a slight (20%) chance of inland showers this afternoon,  just partly cloudy tonight,
• Some AM clouds, sunny Sunday afternoon, mostly cloudy at night,
• AM clouds, sunny and a bit warmer Monday afternoon, then mostly clear Monday night.
• highs 72-73 lows 55-53.
• Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
• Mostly sunny Wednesday and Thursday, mostly clear both nights,
• Then sunny Friday.
• highs 75-74 lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy with AM rain, mostly cloudy and a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms this afternoon (0.50 in. of rain possible), mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late tonight,
• AM clouds and sun, sunny and a bit warmer Sunday afternoon, partly cloudy at night,
• Mostly sunny Monday, then mostly clear Monday night.
• snow level above 8,000 ft. today and tonight, free air freezing level 13,000 ft. Sunday, then snow level above 8,000 ft. Sunday night.
• highs 62-70 lows 46-47 Saturday night cooling to 45 Sunday night.
• Sunny and a bit warmer Tuesday, Wednesday, and Thursday, mostly clear each night,
• Then sunny and a bit warmer Friday.
• free air freezing level 14,000 ft. Tuesday, 13,000 ft. Tuesday night, 14,000 ft. Wednesday, Wednesday night and Thursday, then 16,000 ft. Thursday through Friday.
• highs 72-83 lows 46-52.

An Upper Level Low Pressure Trough (“U”Shape) moves through overnight and early Saturday AM (along with a surface cold front). Then an Upper Level High Pressure  takes over bringing sunshine and warmer temperatures.The graphics for days 1-3 show a cold frontal system moving through the Pacific Northwest overnight tonight and Saturday morning. The graphics for days 3-7  Monday through Friday show a cold front moving through Monday and then another cold front falls apart as it pushes through Wednesday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.14.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with a good (50%) chance of evening showers, patchy fog with showers late tonight,
• Cloudy with a good (50%) chance of AM coastal showers and just partly cloudy and a bit cooler Saturday afternoon while AM inland showers likely (70%) and a bit cooler with a slight (20%) chance of inland showers Saturday afternoon,  just partly cloudy Saturday night,
• Some AM clouds, sunny Sunday afternoon, mostly cloudy at night,
• AM clouds, sunny and a bit warmer Monday afternoon, then mostly clear Monday night.
• lows 59-53 highs 72-73.
• Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
• Mostly sunny Wednesday and Thursday, mostly clear both nights,
• Then sunny Friday.
• highs 75-74 lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy with a slight (20%) chance of evening rain, rain late tonight,
• Mostly cloudy with AM rain, mostly cloudy and a bit cooler with a good ( 50%) chance of showers and a slight (20%) chance of thunderstorms Saturday afternoon (0.50 in. of rain possible), mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late Saturday night,
• AM clouds and sun, sunny and a bit warmer Sunday afternoon, partly cloudy at night,
• Mostly sunny Monday, then mostly clear Monday night.
• snow level above 8,000 ft. tonight through Saturday night, free air freezing level 13,000 ft. Sunday, then snow level above 8,000 ft. Sunday night.
• lows 52-46 warming to 47 Saturday night cooling to 45 Sunday night highs 62-70.
• Sunny and a bit warmer Tuesday, Wednesday, and Thursday, mostly clear each night,
• Then sunny and a bit warmer Friday.
• free air freezing level 14,000 ft. Tuesday, 13,000 ft. Tuesday night, 14,000 ft. Wednesday, Wednesday night and Thursday, then 16,000 ft. Thursday through Friday.
• highs 72-83 lows 46-52.

An Upper Level High Pressure Ridge  (“Arch “Shape) weakens and will be replaced by an Upper Level Low Pressure Trough (“U” shape).  The graphics for days 1-3 show a cold frontal system moving through the Pacific Northwest today. The graphics for days 3-7  Monday through Friday show a cold front moved through Sunday and then another cold front falls apart as it pushes through Wednesday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.11.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with patchy fog and a slight (20%) chance of showers late tonight,
• Patchy AM fog, mostly cloudy and a bit warmer with a slight (20%) chance of showers Friday afternoon, cloudy with evening coastal showers likely (70%) while a good (50%) chance of inland late Friday night while a good (50%) chance of evening showers and inland showers late Friday night,
• Mostly cloudy with AM showers likely (70%), a bit cooler with a slight (20%) chance showers Saturday afternoon, then mostly cloudy Saturday night,
• Mostly cloudy Sunday, then partly cloudy Sunday night.
• lows 58-60 cooling to 54 Sunday night highs 77-73.
• Partly cloudy Monday and Monday night,
• Partly cloudy and a bit warmer Tuesday, mostly clear at night,
• Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
• Then sunny Thursday.
• highs 73-75 lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• A mix of clouds and sun with a slight (20%) chance of rain and a bit cooler this afternoon, mostly cloudy with a (40%) chance of evening rain, showers likely late tonight,
• Cloudy with AM showers, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Saturday afternoon, mostly cloudy with a (30%) chance of evening showers, just mostly cloudy late Saturday night,
• A mix of clouds and sun and a bit warmer with a slight chance of thunderstorms Sunday, partly cloudy with a slight (20%) chance of evening , then mostly cloudy with a slight (20%) chance of showers late Sunday night.
• free air freezing level 14,000 ft. tonight, then snow level above 8,000 ft. Friday through Saturday night, free air freezing level 13,000 ft. Sunday, then snow level above 8,000 ft. Sunday night.
• lows 47-52 cooling to 49 Saturday night highs 69-62 .
• A mix of clouds and sun Monday, mostly clear Monday night,
• Sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
• Then sunny and a bit warmer Thursday.
• free air freezing level 13,000 ft. Monday through Tuesday, 14,000 ft. Tuesday night through Wednesday night, then 15,000 ft.Thursday.
• highs 66-73 lows 49-47.

An Upper Level High Pressure Ridge  (“Arch “Shape) weakens and will be replaced by an Upper Level Low Pressure Trough (“U” shape).    The graphics for days 1-3 show a cold frontal system moving through the Pacific Northwest Friday. The graphics for days 3-7  Sunday through Thursday show a cold front moves through Sunday and then another cold front falls apart as it pushes through Wednesday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.11.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with patchy fog and a slight (20%) chance of showers late tonight,
• Patchy AM fog, mostly cloudy and a bit warmer with a slight (20%) chance of showers Friday afternoon, cloudy with evening coastal showers likely (70%) while a good (50%) chance of inland late Friday night while a good (50%) chance of evening showers and inland showers late Friday night,
• Mostly cloudy with AM showers likely (70%), a bit cooler with a slight (20%) chance showers Saturday afternoon, then mostly cloudy Saturday night,
• Mostly cloudy Sunday, then partly cloudy Sunday night.
• lows 58-60 cooling to 54 Sunday night highs 77-73.
• Partly cloudy Monday and Monday night,
• Partly cloudy and a bit warmer Tuesday, mostly clear at night,
• Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
• Then sunny Thursday.
• highs 73-75 lows near 54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly clear this evening, partly cloudy late tonight,
• A mix of clouds and sun with a slight (20%) chance of rain and a bit cooler Friday afternoon, mostly cloudy with a (%) chance of evening rain, showers likely late Friday night,
• Cloudy with AM showers, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Saturday afternoon, mostly cloudy with a (30%) chance of evening showers, just mostly cloudy late Saturday night,
• A mix of clouds and sun and a bit warmer with a slight chance of thunderstorms Sunday, partly cloudy with a slight (20%) chance of evening , then mostly cloudy with a slight (20%) chance of showers late Sunday night.
• free air freezing level 14,000 ft. tonight, then snow level above 8,000 ft. Friday through Saturday night, free air freezing level 13,000 ft. Sunday, then snow level above 8,000 ft. Sunday night.
• lows 47-52 cooling to 49 Saturday night highs 69-62 .
• A mix of clouds and sun and bit cooler Monday, mostly clear Monday night,
• Sunny and a bit warmer Tuesday, mostly clear at night,
• Sunny and a bit warmer Wednesday, mostly clear Wednesday night,
• Then sunny and a bit warmer Thursday.
• free air freezing level 13,000 ft. Monday through Tuesday, 14,000 ft. Tuesday night through Wednesday night, then 15,000 ft.Thursday.
• highs 66-73 lows 49-47.

An Upper Level High Pressure Ridge  (“Arch “Shape) weakens and will be replaced by an Upper Level Low Pressure Trough (“U” shape).    The graphics for days 1-3 show a cold frontal system moving through the Pacific Northwest Friday. The graphics for days 3-7  Sunday through Thursday show a cold front moves through Sunday and then another cold front falls apart as it pushes through Wednesday.

ADVISORIES:

• A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

_______________

Measured 8.11.25

________________

_______________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with areas of AM coastal fog while patchy inland AM fog, sunny this afternoon, mostly cloudy this evening, a slight (20%) chance of coastal showers mostly cloudy with patchy fog and a slight (20%) chance of showers late tonight,
• Patchy AM fog, mostly cloudy with a slight (20%) chance of showers Friday afternoon, cloudy with evening coastal showers likely (70%) late Friday night while a good (50%) chance of evening showers and inland showers likely (70%) late  Friday night,
• Mostly cloudy with AM showers likely (70%), a bit cooler with a good (50%) chance showers Saturday afternoon,  then mostly cloudy a slight (20%) chance of showers late Saturday night.
• highs 74-75 cooling to 73 Saturday lows 58-60 cooling to 56 Saturday night.
• Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy and a bit warmer Sunday afternoon, partly cloudy Sunday night,
• Partly cloudy Monday and Monday night,
• Then mostly sunny Tuesday and Wednesday, mostly clear Tuesday night.
• highs 73-75 lows 57-54.
• (seasonal averages high 67 low 54).                                                                                                                                                                                                                                                                                                                                                                                                                         _______________

Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly sunny and a bit cooler today, partly cloudy tonight,
• AM clouds and sun with a slight (20%) chance of rain, a (30%) chance of rain Friday afternoon, mostly cloudy with rain likely (70%) at night,
• Mostly cloudy with rain and a slight (20%) chance of thunderstorms Saturday, mostly cloudy with a good (50%) chance of rain Saturday night.
• free air freezing level 14,000 ft. today and tonight, then snow level above 8,000 ft. Friday through Saturday night.
• highs 70-63 lows 47-52 cooling to 49 Saturday night.
• AM clouds with a slight (20%) chance of AM rain, partly cloudy and a bit warmer with a slight (20%) chance of rain Sunday afternoon, ,just  partly cloudy Sunday night,
• Mostly sunny and bit warmer Monday, partly cloudy in the evening, mostly clear late at night,
• Then sunny and a bit warmer Tuesday and Wednesday, mostly clear Tuesday night.
• snow level above 8,000 ft. Sunday, free air freezing level 12,000 ft Sunday night, 13,000 ft. Monday and Monday night, then 14,000 ft. Tuesday through  Wednesday.
• highs 66-73 lows 49-47.