Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

92°F

33°C

Humidity 21%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Heat Index88°F (31°C)
Last update 05 Aug 11:52 AM PDT
Extended Forecast for

17 Miles WNW Illinois Valley OR

Heat Advisory August 5, 12:23pm until August 6, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 5, 12:23pm until August 6, 11:00pm

    NOW until 11:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 80 °F

    Haze

  • Tonight

    Tonight: Widespread haze between 10pm and 2am. Patchy smoke after 2am. Clear, with a low around 64. Light and variable wind becoming east around 6 mph in the evening.

    Low: 64 °F

    Haze

  • Thursday

    Thursday: Widespread haze between 11am and noon. Patchy smoke before 11am. Sunny, with a high near 78. Light and variable wind becoming west southwest 5 to 9 mph in the morning.

    High: 78 °F

    Haze then
    Sunny

  • Thursday Night

    Thursday Night: Widespread haze between 10pm and midnight. Patchy smoke after midnight. Mostly clear, with a low around 64. West southwest wind 5 to 7 mph becoming light and variable.

    Low: 64 °F

    Haze then
    Patchy Smoke

  • Friday

    Friday: Sunny, with a high near 81. East wind 5 to 8 mph becoming west in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

Detailed Forecast

This Afternoon
Widespread haze after 4pm. Patchy smoke before 4pm. Sunny, with a high near 80. West southwest wind 6 to 8 mph.
Tonight
Widespread haze between 10pm and 2am. Patchy smoke after 2am. Clear, with a low around 64. Light and variable wind becoming east around 6 mph in the evening.
Thursday
Widespread haze between 11am and noon. Patchy smoke before 11am. Sunny, with a high near 78. Light and variable wind becoming west southwest 5 to 9 mph in the morning.
Thursday Night
Widespread haze between 10pm and midnight. Patchy smoke after midnight. Mostly clear, with a low around 64. West southwest wind 5 to 7 mph becoming light and variable.
Friday
Sunny, with a high near 81. East wind 5 to 8 mph becoming west in the afternoon.
Friday Night
Clear, with a low around 66.
Saturday
Sunny, with a high near 83.
Saturday Night
Clear, with a low around 63.
Sunday
Sunny, with a high near 79.
Sunday Night
Clear, with a low around 61.
Monday
Sunny, with a high near 77.
Monday Night
Clear, with a low around 61.
Tuesday
Sunny, with a high near 75.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Illinois Valley OR
 42.2°N 123.98°W (Elev. 3786 ft)
12:01 pm PDT Aug 5, 2026
12pm PDT Aug 5, 2026-6pm PDT Aug 11, 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