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

63°F

17°C

Humidity 53%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 21 Mar 10:52 AM PDT
Extended Forecast for

7 Miles NNE Cave Junction OR

  • Today

    Today: Sunny, with a high near 64. North northeast wind 7 to 9 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Widespread frost, mainly after 2am.  Otherwise, partly cloudy, with a low around 33. Northeast wind around 9 mph.

    Low: 33 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 11am.  Otherwise, mostly sunny, with a high near 66. North northeast wind around 9 mph.

    High: 66 °F

    Frost then
    Partly Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 5am.  Otherwise, mostly cloudy, with a low around 36. Northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 36 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 8am.  Otherwise, partly sunny, with a high near 68. Calm wind becoming west around 5 mph in the afternoon.

    High: 68 °F

    Patchy Frost
    then Partly
    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely.  Mostly cloudy, with a high near 63. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain.  Partly sunny, with a high near 60.

    High: 60 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 64. North northeast wind 7 to 9 mph.
Tonight
Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 33. Northeast wind around 9 mph.
Sunday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 66. North northeast wind around 9 mph.
Sunday Night
Patchy frost after 5am. Otherwise, mostly cloudy, with a low around 36. Northeast wind 5 to 7 mph becoming calm in the evening.
Monday
Patchy frost before 8am. Otherwise, partly sunny, with a high near 68. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 39.
Tuesday
Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Partly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Cave Junction OR
 42.26°N 123.58°W (Elev. 1401 ft)
10:41 am PDT Mar 21, 2026
11am PDT Mar 21, 2026-6pm PDT Mar 27, 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