Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

92°F

33°C

Humidity 24%
Wind Speed SSW 7 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Heat Index89°F (32°C)
Last update 19 Aug 06:52 PM PDT
Extended Forecast for

8 Miles E Illinois Valley OR

  • Tonight

    Tonight: Clear, with a low around 61. West southwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Light west southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 61. West southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 61 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 86. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 86 °F

    Gradual
    Clearing

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. West wind 5 to 9 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 61. West southwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 91. Light west southwest wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 61. West southwest wind 5 to 8 mph becoming calm in the evening.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 86. Calm wind becoming west 5 to 8 mph in the afternoon.
Friday Night
Mostly clear, with a low around 54. West wind 5 to 9 mph becoming calm in the evening.
Saturday
Sunny, with a high near 79.
Saturday Night
Clear, with a low around 51.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Illinois Valley OR
 42.07°N 123.52°W (Elev. 2136 ft)
4:40 pm PDT Aug 19, 2026
7pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026
 
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Additional Resources

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