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

41°F

5°C

Humidity 86%
Wind Speed E 4 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 22 Mar 05:52 AM PDT
Extended Forecast for

18 Miles WNW Cave Junction OR

  • Today

    Today: Partly sunny, with a high near 62. East wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 62 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. East wind 7 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 59. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 59 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 51. South wind 6 to 9 mph.

    Low: 51 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am.  Mostly cloudy, with a high near 54. South southwest wind 8 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain.  Low around 44. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 11am.  Snow level 5700 feet lowering to 4500 feet in the afternoon . Mostly cloudy, with a high near 51. Chance of precipitation is 70%.

    High: 51 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm, then a slight chance of rain and snow.  Snow level 4300 feet lowering to 2700 feet after midnight . Partly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 62. East wind 10 to 18 mph, with gusts as high as 28 mph.
Tonight
Mostly cloudy, with a low around 43. East wind 7 to 10 mph.
Monday
Partly sunny, with a high near 59. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 51. South wind 6 to 9 mph.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 54. South southwest wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 44. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain likely, mainly before 11am. Snow level 5700 feet lowering to 4500 feet in the afternoon . Mostly cloudy, with a high near 51. Chance of precipitation is 70%.
Wednesday Night
A chance of rain before 11pm, then a slight chance of rain and snow. Snow level 4300 feet lowering to 2700 feet after midnight . Partly cloudy, with a low around 36.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 41.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles WNW Cave Junction OR
 42.22°N 123.99°W (Elev. 2487 ft)
4:41 am PDT Mar 22, 2026
6am 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