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

88°F

31°C

Humidity 30%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Heat Index86°F (30°C)
Last update 17 Aug 06:52 PM PDT
Extended Forecast for

4 Miles NW Cave Junction OR

  • Tonight

    Tonight: Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. North wind around 6 mph becoming calm  in the evening.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 90. Light north northeast wind.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 90. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 58. North wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 90. Light north northeast wind.
Wednesday Night
Mostly clear, with a low around 58. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 85.
Sunday Night
Clear, with a low around 56.
Monday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Cave Junction OR
 42.2°N 123.71°W (Elev. 2129 ft)
4:40 pm PDT Aug 17, 2026
7pm 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