Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

44°F

7°C

Humidity 86%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 30 Mar 04:52 AM PDT
Extended Forecast for

17 Miles SSE Agness OR

  • Today

    Today: A 40 percent chance of showers, mainly after 2pm.  Partly sunny, with a high near 56. East northeast wind 6 to 8 mph becoming southwest in the afternoon.

    High: 56 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers.  Snow level 6200 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 42. South wind around 6 mph.

    Low: 42 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers.  Snow level 5000 feet lowering to 4000 feet. Partly sunny, with a high near 48. Southwest wind 6 to 13 mph, with gusts as high as 18 mph.

    High: 48 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 11pm, then rain after 11pm.  Snow level 4000 feet. Low around 42. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Snow level 4200 feet rising to 4800 feet. High near 43. South wind 14 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 43 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain showers before 8pm, then rain and snow showers. Some thunder is also possible.  Snow level 4000 feet lowering to 2900 feet after midnight . Low around 38. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow, becoming all rain after 2pm.  Snow level 2800 feet rising to 3600 feet in the afternoon. High near 45. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain, mainly before 11pm.  Snow level 3900 feet. Partly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 56. East northeast wind 6 to 8 mph becoming southwest in the afternoon.
Tonight
A 40 percent chance of showers. Snow level 6200 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 42. South wind around 6 mph.
Tuesday
A 50 percent chance of showers. Snow level 5000 feet lowering to 4000 feet. Partly sunny, with a high near 48. Southwest wind 6 to 13 mph, with gusts as high as 18 mph.
Tuesday Night
A chance of showers before 11pm, then rain after 11pm. Snow level 4000 feet. Low around 42. South southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. Snow level 4200 feet rising to 4800 feet. High near 43. South wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain showers before 8pm, then rain and snow showers. Some thunder is also possible. Snow level 4000 feet lowering to 2900 feet after midnight . Low around 38. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Rain and snow, becoming all rain after 2pm. Snow level 2800 feet rising to 3600 feet in the afternoon. High near 45. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
A chance of rain, mainly before 11pm. Snow level 3900 feet. Partly cloudy, with a low around 34.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
4:41 am PDT Mar 30, 2026
5am PDT Mar 30, 2026-6pm PDT Apr 5, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database