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

52°F

11°C

Humidity 87%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 09 Sep 12:52 AM PDT
Extended Forecast for

8 Miles NNE Cave Junction OR

  • Overnight

    Overnight: Clear, with a low around 55. Light east northeast wind.

    Low: 55 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Light and variable wind.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 57. Northeast wind around 5 mph becoming calm  after midnight.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Light north northeast wind.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. North northeast wind 3 to 8 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 65.

    High: 65 °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

Detailed Forecast

Overnight
Clear, with a low around 55. Light east northeast wind.
Wednesday
Sunny and hot, with a high near 99. Light and variable wind.
Wednesday Night
Clear, with a low around 57. Northeast wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 92. Light north northeast wind.
Thursday Night
Mostly clear, with a low around 53. North northeast wind 3 to 8 mph.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 45.
Saturday
Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 65.
Saturday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 44.
Sunday
Sunny, with a high near 73.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 81.
Monday Night
Clear, with a low around 47.
Tuesday
Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Cave Junction OR
 42.26°N 123.58°W (Elev. 1401 ft)
11:46 pm PDT Sep 8, 2026
1am 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