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

83°F

28°C

Humidity 31%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Heat Index81°F (27°C)
Last update 19 Aug 08:52 PM PDT
Extended Forecast for

19 Miles WNW Cave Junction OR

  • Tonight

    Tonight: Mostly clear, with a low around 60. Light north northeast wind.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. West southwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 74. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 74 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49. West southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

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

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 60. Light north northeast wind.
Thursday
Sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 57. West southwest wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 74. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Friday Night
Mostly clear, with a low around 49. West southwest wind 5 to 8 mph becoming calm in the evening.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 58.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles WNW Cave Junction OR
 42.26°N 124°W (Elev. 2323 ft)
8:26 pm PDT Aug 19, 2026
9pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database