Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

48°F

9°C

Humidity 96%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 09 Sep 03:52 AM PDT
Extended Forecast for

8 Miles NNW Cave Junction OR

  • Today

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

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Light east northeast wind.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 61. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A slight chance of rain before 11pm.  Partly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 95. Light and variable wind.
Tonight
Clear, with a low around 60. West northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 89. Light east northeast wind.
Thursday Night
Mostly clear, with a low around 55. North northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 79. Calm wind becoming west northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 46.
Saturday
Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 61. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 44.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 76.
Monday Night
Clear, with a low around 49.
Tuesday
Sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW Cave Junction OR
 42.27°N 123.67°W (Elev. 2041 ft)
11:46 pm PDT Sep 8, 2026
4am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database