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

9 Miles WNW Illinois Valley OR

  • Today

    Today: A 40 percent chance of showers.  Snow level 4900 feet. Partly sunny, with a high near 45. South southwest wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 45 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of rain before 11pm, then rain and snow between 11pm and midnight, then rain after midnight.  Snow level 4500 feet rising to 5000 feet after midnight. Low around 39. Southwest wind 13 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 39 °F

    Rain/Snow
    then Rain

  • Wednesday

    Wednesday: Rain before 8am, then rain, possibly mixed with snow between 8am and 11am, then rain after 11am. The rain could be heavy at times.  Snow level 5600 feet lowering to 4500 feet in the afternoon . High near 40. Breezy, with a west southwest wind 21 to 24 mph, with gusts as high as 39 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Breezy.
    Rain/Snow
    then Heavy
    Rain

  • Wednesday Night

    Wednesday Night: Rain and snow showers, becoming all snow after 8pm. Some thunder is also possible.  Low around 34. West southwest wind 17 to 21 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 34 °F

    Rain/Snow
    then Snow
    Showers

  • Thursday

    Thursday: Snow showers before 2pm, then rain likely, possibly mixed with snow showers.  High near 41. West wind 9 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 41 °F

    Snow Showers
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 11pm.  Snow level 3800 feet lowering to 3400 feet after midnight . Partly cloudy, with a low around 31.

    Low: 31 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers. Snow level 4900 feet. Partly sunny, with a high near 45. South southwest wind 13 to 15 mph, with gusts as high as 23 mph.
Tonight
A chance of rain before 11pm, then rain and snow between 11pm and midnight, then rain after midnight. Snow level 4500 feet rising to 5000 feet after midnight. Low around 39. Southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Rain before 8am, then rain, possibly mixed with snow between 8am and 11am, then rain after 11am. The rain could be heavy at times. Snow level 5600 feet lowering to 4500 feet in the afternoon . High near 40. Breezy, with a west southwest wind 21 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow showers, becoming all snow after 8pm. Some thunder is also possible. Low around 34. West southwest wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow showers before 2pm, then rain likely, possibly mixed with snow showers. High near 41. West wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 30 percent chance of showers before 11pm. Snow level 3800 feet lowering to 3400 feet after midnight . Partly cloudy, with a low around 31.
Friday
Sunny, with a high near 56.
Friday Night
Clear, with a low around 39.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Illinois Valley OR
 42.15°N 123.85°W (Elev. 3356 ft)
10:46 am PDT Mar 31, 2026
11am PDT Mar 31, 2026-6pm PDT Apr 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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