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 >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

104°F

40°C

Humidity 12%
Wind Speed SE 3 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index99°F (37°C)
Last update 04 Aug 03:52 PM PDT
Extended Forecast for

15 Miles SSE Agness OR

Heat Advisory August 4, 04:09pm until August 6, 11:00pm
Red Flag Warning August 5, 02:00pm until August 5, 09:00pm
Red Flag Warning August 4, 04:09pm until August 4, 09:00pm
Click here for hazard details and duration
Heat Advisory
Red Flag Warning
...
  •  
    Heat Advisory August 4, 04:09pm until August 6, 11:00pm
    Red Flag Warning August 4, 04:09pm until August 4, 09:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 66 °F

    Areas Smoke

  • Wednesday

    Wednesday: Areas of smoke. Sunny, with a high near 83. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 83 °F

    Areas Smoke

  • Wednesday Night

    Wednesday Night: Patchy smoke. Mostly clear, with a low around 65. West southwest wind 5 to 8 mph becoming light and variable  after midnight.

    Low: 65 °F

    Patchy Smoke

  • Thursday

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

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 64. West wind around 7 mph becoming northeast after midnight.

    Low: 64 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Tonight
Areas of smoke. Clear, with a low around 66. West northwest wind 6 to 8 mph becoming east after midnight.
Wednesday
Areas of smoke. Sunny, with a high near 83. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon.
Wednesday Night
Patchy smoke. Mostly clear, with a low around 65. West southwest wind 5 to 8 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 81. East wind 5 to 8 mph becoming west in the morning.
Thursday Night
Clear, with a low around 64. West wind around 7 mph becoming northeast after midnight.
Friday
Sunny, with a high near 85.
Friday Night
Clear, with a low around 64.
Saturday
Sunny, with a high near 78.
Saturday Night
Clear, with a low around 60.
Sunday
Sunny, with a high near 73.
Sunday Night
Clear, with a low around 58.
Monday
Sunny, with a high near 72.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny, with a high near 71.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SSE Agness OR
 42.36°N 123.94°W (Elev. 3681 ft)
2:01 pm PDT Aug 4, 2026
4pm PDT Aug 4, 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