Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, 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

67°F

19°C

Humidity 48%
Wind Speed S 1 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 18 Aug 11:52 PM PDT
Extended Forecast for

3 Miles SSW Illinois Valley OR

  • Overnight

    Overnight: Partly cloudy, with a low around 55. Light north northeast wind.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 95. Light and variable wind.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Light and variable wind.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 55. Light north northeast wind.
Wednesday
Sunny, with a high near 95. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 55. Light and variable wind.
Thursday
Sunny, with a high near 93. Calm wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 54. West southwest wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 83.
Saturday Night
Clear, with a low around 48.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Illinois Valley OR
 42.07°N 123.7°W (Elev. 1512 ft)
11:26 pm PDT Aug 18, 2026
12am PDT Aug 19, 2026-6pm PDT Aug 25, 2026
 
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Additional Resources

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