Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

91°F

33°C

Humidity 28%
Wind Speed NE 5 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Heat Index89°F (32°C)
Last update 17 Aug 05:52 PM PDT
Extended Forecast for

7 Miles W Illinois Valley OR

  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind 5 to 8 mph becoming east northeast after midnight.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. East northeast wind 5 to 7 mph becoming calm.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. North northwest wind around 7 mph becoming east northeast in the evening.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 78. Northeast wind 5 to 9 mph becoming light and variable  in the afternoon.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. West wind 5 to 7 mph becoming northeast after midnight.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 57. West wind 5 to 8 mph becoming east northeast after midnight.
Tuesday
Sunny, with a high near 79. East northeast wind 5 to 7 mph becoming calm.
Tuesday Night
Partly cloudy, with a low around 58. North northwest wind around 7 mph becoming east northeast in the evening.
Wednesday
Sunny, with a high near 78. Northeast wind 5 to 9 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly clear, with a low around 57. West wind 5 to 7 mph becoming northeast after midnight.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles W Illinois Valley OR
 42.09°N 123.83°W (Elev. 3278 ft)
4:40 pm PDT Aug 17, 2026
6pm PDT Aug 17, 2026-6pm PDT Aug 24, 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