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

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

51°F

11°C

Humidity 83%
Wind Speed NNW 0 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 17 Mar 09:52 AM PDT
Extended Forecast for

7 Miles SW Illinois Valley OR

  • Today

    Today: Sunny, with a high near 73. Southwest wind 5 to 7 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. West southwest wind 8 to 11 mph.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. West southwest wind around 10 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. West southwest wind 5 to 9 mph becoming calm.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain before 11am. Partly sunny, with a high near 58.

    High: 58 °F

    Slight Chance
    Rain then
    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 73. Southwest wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 48. West southwest wind 8 to 11 mph.
Wednesday
Sunny, with a high near 72. West southwest wind around 10 mph.
Wednesday Night
Clear, with a low around 47. West southwest wind 5 to 9 mph becoming calm.
Thursday
Sunny, with a high near 73. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 69.
Friday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 46.
Saturday
A slight chance of rain before 11am. Partly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 59.
Sunday Night
A slight chance of rain. Snow level 6200 feet lowering to 5200 feet after midnight . Mostly cloudy, with a low around 38.
Monday
A slight chance of rain. Snow level 4800 feet rising to 5500 feet in the afternoon. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SW Illinois Valley OR
 42.03°N 123.78°W (Elev. 2428 ft)
Last Update:
10:41 am PDT Mar 17, 2026
Forecast Valid:
10am PDT Mar 17, 2026-6pm PDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation