National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

74°F

23°C

Humidity 37%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 20 Mar 06:52 PM PDT
Extended Forecast for

8 Miles N Cave Junction OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Light north northwest wind.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 67. Northeast wind 5 to 8 mph.

    High: 67 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Widespread frost after 2am. Otherwise, mostly clear, with a low around 31. North northeast wind 7 to 9 mph.

    Low: 31 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 8am. Otherwise, mostly sunny, with a high near 68. Northeast wind around 9 mph.

    High: 68 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 35. North northeast wind 3 to 6 mph.

    Low: 35 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, partly sunny, with a high near 74.

    High: 74 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after 11am. Partly sunny, with a high near 69.

    High: 69 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 44. Light north northwest wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 67. Northeast wind 5 to 8 mph.
Saturday Night
Widespread frost after 2am. Otherwise, mostly clear, with a low around 31. North northeast wind 7 to 9 mph.
Sunday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 68. Northeast wind around 9 mph.
Sunday Night
Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 35. North northeast wind 3 to 6 mph.
Monday
Areas of frost before 8am. Otherwise, partly sunny, with a high near 74.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
A slight chance of rain after 11am. Partly sunny, with a high near 69.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain, mainly before 11am. Partly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles N Cave Junction OR
 42.28°N 123.64°W (Elev. 1398 ft)
Last Update:
4:41 pm PDT Mar 20, 2026
Forecast Valid:
7pm PDT Mar 20, 2026-6pm PDT Mar 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation