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 into the morning. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

38°F

3°C

Humidity 98%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 02 Apr 03:52 AM PDT
Extended Forecast for

16 Miles SE Agness OR

Freeze Warning April 3, 02:00am until April 3, 09:00am
Click here for hazard details and duration
Freeze Warning
  • Overnight

    Overnight: Rain and snow showers likely before 5am, then rain and snow. Some thunder is also possible.  Snow level 2400 feet. Low around 38. West wind around 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow before 1pm, then a chance of rain between 1pm and 3pm.  Snow level 2500 feet rising to 3700 feet in the afternoon. High near 51. West wind around 7 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 51 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. West northwest wind around 6 mph becoming east after midnight.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. Northeast wind around 7 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 44. Northeast wind around 7 mph.

    Low: 44 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain and snow showers likely before 5am, then rain and snow. Some thunder is also possible. Snow level 2400 feet. Low around 38. West wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
Rain and snow before 1pm, then a chance of rain between 1pm and 3pm. Snow level 2500 feet rising to 3700 feet in the afternoon. High near 51. West wind around 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 34. West northwest wind around 6 mph becoming east after midnight.
Friday
Sunny, with a high near 66. Northeast wind around 7 mph.
Friday Night
Clear, with a low around 44. Northeast wind around 7 mph.
Saturday
Sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 74.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 48.
Tuesday
A chance of rain. Partly sunny, with a high near 66.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 46.
Wednesday
A chance of rain. Partly sunny, with a high near 63.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
3:31 am PDT Apr 2, 2026
4am PDT Apr 2, 2026-6pm PDT Apr 8, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database