Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

61°F

16°C

Humidity 39%
Wind Speed S 3 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 19 Mar 08:52 PM PDT
Extended Forecast for

3 Miles SE Illinois Valley OR

  • Tonight

    Tonight: Mostly clear, with a low around 33. Light south wind.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday:  during the morning, then clearing, with a high near 81. Calm wind.

    High: 81 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 47. West wind around 6 mph becoming calm  in the evening.

    Low: 47 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of rain before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 66. West wind 5 to 7 mph becoming north in the morning.

    High: 66 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. North northeast wind 5 to 9 mph becoming light northeast  in the evening.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 33. Light south wind.
Friday
during the morning, then clearing, with a high near 81. Calm wind.
Friday Night
Increasing clouds, with a low around 47. West wind around 6 mph becoming calm in the evening.
Saturday
A 20 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 66. West wind 5 to 7 mph becoming north in the morning.
Saturday Night
Mostly clear, with a low around 24. North northeast wind 5 to 9 mph becoming light northeast in the evening.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 70.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A chance of rain, mainly after 11am. Partly sunny, with a high near 73.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 36.
Wednesday
A chance of rain. Snow level 5300 feet lowering to 4300 feet. Partly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Illinois Valley OR
 42.08°N 123.65°W (Elev. 1644 ft)
4:41 pm PDT Mar 19, 2026
9pm PDT Mar 19, 2026-6pm PDT Mar 26, 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