Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

51°F

11°C

Humidity 86%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 31 Mar 10:52 AM PDT
Extended Forecast for

17 Miles SSE Agness OR

  • Today

    Today: A 40 percent chance of showers.  Snow level 4400 feet. Partly sunny, with a high near 47. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 47 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 11pm, then rain after 11pm.  Snow level 3900 feet rising to 5000 feet after midnight. Low around 41. South southwest wind 13 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain

  • Wednesday

    Wednesday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  Snow level 5400 feet lowering to 4400 feet in the afternoon . Temperature falling to around 39 by 5pm. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 43 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Snow showers, possibly mixed with rain. Some thunder is also possible.  Snow level 3600 feet lowering to 2700 feet after midnight . Low around 37. West southwest wind 17 to 20 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow

  • Thursday

    Thursday: Rain, possibly mixed with snow showers, becoming all rain after 2pm.  Snow level 2700 feet rising to 3500 feet in the afternoon. High near 44. West wind 9 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 11pm.  Snow level 3500 feet. Partly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers. Snow level 4400 feet. Partly sunny, with a high near 47. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Tonight
A chance of showers before 11pm, then rain after 11pm. Snow level 3900 feet rising to 5000 feet after midnight. Low around 41. South southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. Snow level 5400 feet lowering to 4400 feet in the afternoon . Temperature falling to around 39 by 5pm. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Snow showers, possibly mixed with rain. Some thunder is also possible. Snow level 3600 feet lowering to 2700 feet after midnight . Low around 37. West southwest wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Rain, possibly mixed with snow showers, becoming all rain after 2pm. Snow level 2700 feet rising to 3500 feet in the afternoon. High near 44. West wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of showers before 11pm. Snow level 3500 feet. Partly cloudy, with a low around 34.
Friday
Sunny, with a high near 58.
Friday Night
Clear, with a low around 43.
Saturday
Sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
10:46 am PDT Mar 31, 2026
11am PDT Mar 31, 2026-6pm PDT Apr 6, 2026
 
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Additional Resources

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