Heavy Snow and Disruptive Ice in the Upper Midwest; Severe Thunderstorms in the Southern Plains

A late season winter storm will produce a combination of heavy snow and disruptive ice starting this evening in the Northern Plains and moving into the Upper Midwest and Great Lakes by tonight continuing through Thursday. Severe thunderstorms will likely produce severe wind gusts, large hail, a few tornadoes, and heavy rainfall across the southern and central Plains today. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

44°F

7°C

Humidity 98%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 01 Apr 04:52 AM PDT
Extended Forecast for

Illinois Valley OR

  • Overnight

    Overnight: A 50 percent chance of rain.  Mostly cloudy, with a low around 38. South southwest wind around 10 mph.

    Low: 38 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain.  Snow level 5300 feet lowering to 3800 feet in the afternoon . High near 50. Southwest wind 10 to 15 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 50 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then rain likely, possibly mixed with snow showers. Some thunder is also possible.  Snow level 2800 feet. Low around 32. Southwest wind 10 to 16 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 32 °F

    Showers then
    Rain/Snow

  • Thursday

    Thursday: Rain, possibly mixed with snow, becoming all rain after 8am.  Snow level 2700 feet rising to 3800 feet in the afternoon. High near 52. Light and variable wind.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 52 °F

    Rain/Snow
    then Rain
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 11pm.  Snow level 4000 feet lowering to 3200 feet after midnight . Mostly clear, with a low around 27. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 27 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
A 50 percent chance of rain. Mostly cloudy, with a low around 38. South southwest wind around 10 mph.
Wednesday
Rain. Snow level 5300 feet lowering to 3800 feet in the afternoon . High near 50. Southwest wind 10 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain showers before 5am, then rain likely, possibly mixed with snow showers. Some thunder is also possible. Snow level 2800 feet. Low around 32. Southwest wind 10 to 16 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, becoming all rain after 8am. Snow level 2700 feet rising to 3800 feet in the afternoon. High near 52. Light and variable wind. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
A 20 percent chance of rain before 11pm. Snow level 4000 feet lowering to 3200 feet after midnight . Mostly clear, with a low around 27. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 66.
Friday Night
Clear, with a low around 35.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 74.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 42.
Tuesday
A chance of rain. Partly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Illinois Valley OR
 42.09°N 123.68°W (Elev. 1394 ft)
4:41 am PDT Apr 1, 2026
5am PDT Apr 1, 2026-6pm PDT Apr 7, 2026
 
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Additional Resources

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