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

39°F

4°C

Humidity 89%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 02 Apr 02:52 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: Snow showers likely before 5am, then snow after 5am. Some thunder is also possible.  Low around 35. West wind 11 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 35 °F

    Snow

  • Thursday

    Thursday: Rain and snow before 1pm, then a chance of rain between 1pm and 3pm.  Snow level rising to 3700 feet in the afternoon. High near 45. West wind 6 to 8 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 45 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Thursday Night

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

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61. East wind around 7 mph.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 43. East northeast wind around 8 mph.

    Low: 43 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 69.

    High: 69 °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 73.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow showers likely before 5am, then snow after 5am. Some thunder is also possible. Low around 35. West wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Thursday
Rain and snow before 1pm, then a chance of rain between 1pm and 3pm. Snow level rising to 3700 feet in the afternoon. High near 45. West wind 6 to 8 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 34. Northwest wind around 6 mph becoming east after midnight.
Friday
Sunny, with a high near 61. East wind around 7 mph.
Friday Night
Clear, with a low around 43. East northeast wind around 8 mph.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 68.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Tuesday
A chance of rain. Partly sunny, with a high near 61.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Snow level 5200 feet rising to 5800 feet in the afternoon. Partly sunny, with a high near 58.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.4°N 123.83°W (Elev. 2582 ft)
3:31 am PDT Apr 2, 2026
3am PDT Apr 2, 2026-6pm PDT Apr 8, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database