National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather in the Plains; Unseasonably Warm in the Southwest and Southern U.S.

Unseasonably warm temperatures continue through the weekend across the Southwest and southern U.S., with more than 100 record or near record maximum temperatures forecast through the rest of the week and over the weekend. Elevated to critical fire weather conditions will persist across the Plains and Southeast U.S. this weekend. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

33°F

1°C

Humidity 98%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 28 Mar 05:52 AM PDT
Extended Forecast for

3 Miles SE Illinois Valley OR

  • Today

    Today: Mostly sunny, with a high near 70. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 11pm. Snow level 5800 feet lowering to 3700 feet after midnight . Mostly cloudy, with a low around 33. West wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Slight Chance
    Rain

  • Monday

    Monday: A 20 percent chance of rain. Snow level 2900 feet rising to 4500 feet in the afternoon. Partly sunny, with a high near 60. Light northeast wind.

    High: 60 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before 11pm. Snow level 5000 feet lowering to 4300 feet. Mostly clear, with a low around 32.

    Low: 32 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of rain after 11am. Snow level 4300 feet rising to 4900 feet in the afternoon. Mostly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 11pm. Snow level 4700 feet lowering to 3700 feet after midnight . Mostly cloudy, with a low around 37.

    Low: 37 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain. Snow level 4000 feet rising to 4600 feet. Cloudy, with a high near 50.

    High: 50 °F

    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 70. Calm wind becoming west southwest around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 39. Calm wind.
Sunday
Partly sunny, with a high near 64. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of rain after 11pm. Snow level 5800 feet lowering to 3700 feet after midnight . Mostly cloudy, with a low around 33. West wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of rain. Snow level 2900 feet rising to 4500 feet in the afternoon. Partly sunny, with a high near 60. Light northeast wind.
Monday Night
A 20 percent chance of rain before 11pm. Snow level 5000 feet lowering to 4300 feet. Mostly clear, with a low around 32.
Tuesday
A 20 percent chance of rain after 11am. Snow level 4300 feet rising to 4900 feet in the afternoon. Mostly sunny, with a high near 64.
Tuesday Night
Rain likely, mainly after 11pm. Snow level 4700 feet lowering to 3700 feet after midnight . Mostly cloudy, with a low around 37.
Wednesday
Rain. Snow level 4000 feet rising to 4600 feet. Cloudy, with a high near 50.
Wednesday Night
Rain. Snow level 4200 feet lowering to 3100 feet after midnight . Cloudy, with a low around 32.
Thursday
Rain. Snow level 2900 feet rising to 3500 feet in the afternoon. Mostly cloudy, with a high near 50.
Thursday Night
A chance of rain. Snow level 3700 feet lowering to 2900 feet after midnight . Mostly cloudy, with a low around 29.
Friday
A slight chance of rain. Snow level 2800 feet rising to 4500 feet in the afternoon. Sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Illinois Valley OR
 42.08°N 123.65°W (Elev. 1644 ft)
Last Update:
4:41 am PDT Mar 28, 2026
Forecast Valid:
6am PDT Mar 28, 2026-6pm PDT Apr 3, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation