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

59°F

15°C

Humidity 68%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 20 Aug 02:52 AM PDT
Extended Forecast for

8 Miles N Cave Junction OR

  • Overnight

    Overnight: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Calm wind becoming west around 6 mph in the afternoon.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 58. Light and variable wind.

    Low: 58 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 92. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 92 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °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 90.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 57. Calm wind.
Thursday
Sunny and hot, with a high near 99. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 58. Light and variable wind.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 92. Calm wind becoming west southwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 53. West wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 54.
Monday
Mostly sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles N Cave Junction OR
 42.28°N 123.61°W (Elev. 1398 ft)
1:41 am PDT Aug 20, 2026
3am PDT Aug 20, 2026-6pm PDT Aug 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database