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

Heat Continues Across the Central and Western U.S.; Tracking Hazardous Weather Across the Northern U.S.

Early-season record warmth will persist across portions of the western and central U.S. through mid week, with high temperatures approaching 90 degrees from Texas to the Ohio Valley. Rain and mountain snow are possible across the Pacific Northwest Wednesday, with Severe Thunderstorms and wintry weather expected across the Northeast Thursday and Friday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

62°F

17°C

Humidity 49%
Wind Speed SW 13 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 24 Mar 01:52 PM PDT
Extended Forecast for

Illinois Valley OR

  • This Afternoon

    This Afternoon: A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 66. Southwest wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 66 °F

    Chance Rain

  • Tonight

    Tonight: Rain, mainly before 2am. Low around 45. South southwest wind 5 to 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain before 8am, then a slight chance of rain after 2pm. Snow level 6000 feet lowering to 4400 feet in the afternoon . Partly sunny, with a high near 57. West wind around 6 mph. Chance of precipitation is 30%.

    High: 57 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Widespread frost after 2am. Otherwise, partly cloudy, with a low around 32. Light north northwest wind becoming north northeast 5 to 9 mph in the evening.

    Low: 32 °F

    Mostly Cloudy
    then Frost

  • Thursday

    Thursday: Sunny, with a high near 63. North northeast wind 9 to 11 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Frost

  • Friday

    Friday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 76.

    High: 76 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 66. Southwest wind 11 to 13 mph, with gusts as high as 20 mph.
Tonight
Rain, mainly before 2am. Low around 45. South southwest wind 5 to 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of rain before 8am, then a slight chance of rain after 2pm. Snow level 6000 feet lowering to 4400 feet in the afternoon . Partly sunny, with a high near 57. West wind around 6 mph. Chance of precipitation is 30%.
Wednesday Night
Widespread frost after 2am. Otherwise, partly cloudy, with a low around 32. Light north northwest wind becoming north northeast 5 to 9 mph in the evening.
Thursday
Sunny, with a high near 63. North northeast wind 9 to 11 mph.
Thursday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 34.
Friday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 73.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 41.
Monday
A chance of rain. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Illinois Valley OR
 42.11°N 123.69°W (Elev. 1398 ft)
Last Update:
12:36 pm PDT Mar 24, 2026
Forecast Valid:
2pm PDT Mar 24, 2026-6pm PDT Mar 30, 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