Here is my new weekly weather quiz question. What is “Juvenile Water?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

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An upper level low (Shaded “U” shape with blue arrows) will continue to slide through the Pacific Northwest. An upper level high pressure ridge will take over bringing back the sunshine today and warming us up for the rest of the week.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 22 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 9 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 22 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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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 and a bit warmer today and this evening, clear late tonight,
• Sunny and warmer Tuesday, clear at night,
• Sunny and hot Wednesday, then clear at night.
• highs 80-98 lows 50-57.
• Sunny and hot Thursday, mostly clear at night,
• Mostly sunny and bit cooler but still hot Friday, clear Friday night,
• Then mostly sunny and a bit cooler Saturday and Sunday, mostly clear Saturday night.
• highs 100-92 lows 60-62. (seasonal averages high 84 low 52)

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Eugene/Springfield Pollen Count:

Trees: Low- 4

Grass: Moderate- 5

Reading as of: 7/25/15

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy this AM, sunny and warmer this afternoon, Tuesday and Wednesday, clear nights,
• highs 83-105 lows 55-67.
• Mostly sunny and hot Thursday, mostly clear at night,
• Mostly sunny with a slight (20%) chance of thunderstorms Friday and Saturday, mostly clear with a slight (20%) chance of thunderstorms Friday night, a slight (20%) chance of thunderstorms Saturday evening, just partly cloudy late Saturday night,
• Then partly cloudy with a slight (20%) chance of thunderstorms and a bit cooler Sunday.
• highs 105-96 lows near 66. (seasonal averages high 86 low 57)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Partly cloudy late this AM, sunny and a bit warmer this afternoon, clear tonight,
• Sunny and a bit warmer Tuesday and Wednesday, clear both nights.
• highs 70-74 lows 55-62.
• Sunny and a bit cooler Thursday, mostly clear Thursday night,
• Mostly sunny Friday and Saturday, mostly clear Friday night, then partly cloudy Saturday night and Sunday.
• highs 70-73 cooling to 68 Sunday lows 62-58. (seasonal averages high 65 low 53)

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Forecast for the Cascades in Lane County:

• Partly cloudy this AM, mostly sunny and warmer this afternoon, mostly clear tonight,
• Sunny and warmer Tuesday and Wednesday, clear both nights.
• free air freezing level 11,000 ft. today, 12,000 ft. tonight, 14,000 ft. Tuesday and Tuesday night, then 15,000 ft. Wednesday and Wednesday night.
• highs 64-85 lows 40-54.
• Mostly sunny Thursday and Friday, mostly clear Thursday night, partly cloudy Friday night,
• Mostly sunny Saturday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon, mostly clear with a slight (20%) chance of showers and thunderstorms Saturday evening, just mostly clear late at night,
• Then partly cloudy with a slight (20%) chance of showers and thunderstorms Sunday afternoon.
• free air freezing level 15,000 ft. Thursday through Friday night, then snow level above 8,000 ft. Saturday through Sunday.
• highs 87-80 lows near 55.

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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 and Lane County news on-line at eugenedailynews.com.

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