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

50°F

10°C

Humidity 85%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 20 Mar 11:52 PM PDT
Extended Forecast for

8 Miles NW Cave Junction OR

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. West northwest wind around 7 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 50. Light and variable wind becoming north northeast 5 to 8 mph in the morning.

    High: 50 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. Northeast wind around 9 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 54. East northeast wind 8 to 10 mph.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. North northeast wind 7 to 9 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 11am. Partly sunny, with a high near 54.

    High: 54 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain. Snow level 7900 feet lowering to 6400 feet after midnight . Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. West northwest wind around 7 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 50. Light and variable wind becoming north northeast 5 to 8 mph in the morning.
Saturday Night
Mostly clear, with a low around 37. Northeast wind around 9 mph.
Sunday
Mostly sunny, with a high near 54. East northeast wind 8 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 40. North northeast wind 7 to 9 mph.
Monday
Partly sunny, with a high near 55.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
A chance of rain after 11am. Partly sunny, with a high near 54.
Tuesday Night
A chance of rain. Snow level 7900 feet lowering to 6400 feet after midnight . Mostly cloudy, with a low around 42.
Wednesday
A chance of rain, mainly before 11am. Snow level 5900 feet lowering to 4700 feet in the afternoon . Partly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Cave Junction OR
 42.24°N 123.75°W (Elev. 4163 ft)
Last Update:
10:41 pm PDT Mar 20, 2026
Forecast Valid:
12am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation