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

49°F

9°C

Humidity 61%
Wind Speed N 9 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 22 Mar 12:52 AM PDT
Extended Forecast for

12 Miles ESE Cave Junction OR

  • Overnight

    Overnight: Mostly cloudy, with a low around 38. East wind around 7 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 55. East wind 5 to 7 mph becoming light and variable  in the morning.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. Light and variable wind.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 56. Light and variable wind becoming west 5 to 8 mph in the afternoon.

    High: 56 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after 11pm.  Mostly cloudy, with a low around 48. South southwest wind 9 to 11 mph.

    Low: 48 °F

    Chance Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain.  Partly sunny, with a high near 54. Breezy.

    High: 54 °F

    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Rain likely.  Snow level 8500 feet lowering to 7300 feet after midnight . Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely, possibly mixed with snow, mainly before 11am.  Snow level 6800 feet lowering to 5700 feet in the afternoon . Partly sunny, with a high near 50.

    High: 50 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow before 11pm.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. East wind around 7 mph.
Sunday
Mostly sunny, with a high near 55. East wind 5 to 7 mph becoming light and variable in the morning.
Sunday Night
Mostly cloudy, with a low around 40. Light and variable wind.
Monday
Partly sunny, with a high near 56. Light and variable wind becoming west 5 to 8 mph in the afternoon.
Monday Night
A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 48. South southwest wind 9 to 11 mph.
Tuesday
A 50 percent chance of rain. Partly sunny, with a high near 54. Breezy.
Tuesday Night
Rain likely. Snow level 8500 feet lowering to 7300 feet after midnight . Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Wednesday
Rain likely, possibly mixed with snow, mainly before 11am. Snow level 6800 feet lowering to 5700 feet in the afternoon . Partly sunny, with a high near 50.
Wednesday Night
A slight chance of rain and snow before 11pm. Mostly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Cave Junction OR
 42.09°N 123.44°W (Elev. 4610 ft)
10:41 pm PDT Mar 21, 2026
1am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database