Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms are possible from the Ohio Valley to the central Plains this evening, and the threat will expand into the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Alaska through this evening and for the Four Corners region through Monday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

88°F

31°C

Humidity 14%
Wind Speed NE 6 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Heat Index84°F (29°C)
Last update 21 Jun 01:52 PM PDT
Extended Forecast for

11 Miles WSW Illinois Valley OR

Heat Advisory June 22, 11:00am until June 23, 11:00pm
Click here for hazard details and duration
Heat Advisory
  • This Afternoon

    This Afternoon: Sunny, with a high near 80. West northwest wind 5 to 7 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 55. North wind 5 to 10 mph becoming east northeast in the evening.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 84. East northeast wind 5 to 10 mph becoming light and variable.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 58. West wind around 6 mph becoming light and variable.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. East northeast wind around 6 mph becoming northwest in the afternoon.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. West northwest wind 5 to 7 mph.
Tonight
Clear, with a low around 55. North wind 5 to 10 mph becoming east northeast in the evening.
Monday
Sunny, with a high near 84. East northeast wind 5 to 10 mph becoming light and variable.
Monday Night
Clear, with a low around 58. West wind around 6 mph becoming light and variable.
Tuesday
Sunny, with a high near 83. East northeast wind around 6 mph becoming northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Clear, with a low around 56.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 50.
Friday
A slight chance of rain. Partly sunny, with a high near 61.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48.
Saturday
A slight chance of rain. Mostly sunny, with a high near 63.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Illinois Valley OR
 42.06°N 123.88°W (Elev. 2428 ft)
1:51 pm PDT Jun 21, 2026
2pm PDT Jun 21, 2026-6pm PDT Jun 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database