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Advisories: NONE AT THIS TIME.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Partly cloudy with a slight (20%) chance of thunderstorms this evening, partly cloudy with a (30%) chance of showers late tonight (under 0.10 in. of rain possible, more in storms) and Tuesday AM, a mix of clouds and sun with a slight (20%) chance of thunderstorms Tuesday afternoon and evening (under 0.10 in. of rain possible, more in storms), then a slight (20%) chance of showers late Tuesday night (under 0.10 in. of rain possible) and again Wednesday AM, a mix of clouds and sun with a slight (20%) chance of showers Wednesday afternoon and evening, then partly cloudy Wednesday night through Thursday night lows 56-52 highs 76-78. Partly cloudy Thursday through Friday night, then mostly sunny Saturday, Sunday, and Monday with mostly clear nights highs 80-90 cooling to near 87 Monday lows near 54. (seasonal averages high 83 low 52)

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a slight (20%) chance of showers and isolated thunderstorms this evening, scattered showers and isolated thunderstorms late tonight (under 0.10 in. of rain possible, more in storms), mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of isolated thunderstorms Tuesday AM increasing in the afternoon and evening (under 0.10 in. of rain possible, more in storms), a  (40%) chance of showers late Tuesday night and Wednesday AM, partly cloudy with a slight (20%) chance of thunderstorms Wednesday afternoon and evening, partly cloudy late Wednesday night, mostly cloudy Thursday AM, partly cloudy with a slight (20%) chance of thunderstorms Thursday afternoon and evening, then just partly cloudy Thursday night lows 57-54 highs 72-82. Partly cloudy Friday through Saturday AM, mostly clear at night, then mostly sunny Sunday through Monday with mostly clear nights highs 84-92 cooling to near 89 Monday lows near 58. (seasonal averages high 85 low 57)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with scattered coastal showers and inland showers and isolated thunderstorms tonight (under 0.10 in. of rain possible, more in storms), mostly cloudy with scattered showers and isolated thunderstorms Tuesday AM increasing in the afternoon and evening (under 0.10 in. of rain possible, more in storms), a (30%) chance of showers late Tuesday night (under 0.10 in. of rain possible), mostly cloudy with a (30%) chance of coastal showers Wednesday, a (30%) chance of AM inland showers and a slight (20%) chance of thunderstorms in the afternoon and evening, thunderstorms and a (30%) chance of showers late Tuesday night, with a (30%) chance of coastal showers late Tuesday night, mostly cloudy with a slight (20%) chance of showers Wednesday AM, then just mostly cloudy with a slight (20%) chance of thunderstorms Wednesday afternoon and evening, mostly cloudy Thursday AM, partly cloudy with a slight (20%) chance of thunderstorms in the afternoon and evening, then mostly cloudy Thursday night lows 56-52 warming to 55 Thursday night highs 62-65.  Mostly cloudy Friday AM, mostly cloudy with Saturday AM, mostly sunny and warmer in the afternoon, mostly clear Saturday night, mostly sunny Sunday and Monday highs near 65 lows near 55. (seasonal averages high 65 low 53).

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Forecast for the Cascades of Lane County:  Partly cloudy with a slight (20%) chance of thunderstorms this evening, a (40%) chance of showers late tonight and a slight (20%) chance of thunderstorms late tonight and Tuesday AM, a (40%) chance of afternoon and evening thunderstorms (0.10 in. of rain possible, more in storms), a (30%) chance of showers and a slight (20%) chance thunderstorms late Tuesday night (0.10 in. of rain possible, more in storms), a (30%) chance of showers Wednesday AM, a mix of clouds and sun with a (30%) chance of showers and a slight (20%) chance of thunderstorms in the afternoon and evening, a (30%) chance of showers late Wednesday night partly cloudy with a slight (20%) chance of showers Thursday, a (20%) chance of showers and a slight (20%) chance of thunderstorms Thursday evening, then just partly cloudy late Thursday night snow level above 8,000 ft. tonight through Thursday night lows near 46 highs 60-65. Partly cloudy Friday and Friday night, then mostly sunny Saturday, Sunday, and Monday with mostly clear skies at night free air freezing level 12,000 ft. Friday, 13,000 ft. Friday night and Saturday, 14,000 ft. Saturday night through Sunday night, then 15,000 ft. Monday highs 68-82 cooling to near 79 Monday lows 47-50.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

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Get your local Eugene-Springfield news on-line at Eugene Daily News.com

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