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

47°F

8°C

Humidity 69%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 22 Mar 02:52 AM PDT
Extended Forecast for

8 Miles WNW Illinois Valley OR

  • Overnight

    Overnight: Partly cloudy, with a low around 37. Northeast wind around 15 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 58. Northeast wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. Northeast wind 5 to 9 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 48. South southwest wind 7 to 10 mph.

    Low: 48 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am.  Mostly cloudy, with a high near 53. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain.  Low around 43. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • Wednesday

    Wednesday: Rain likely before 8am, then rain likely, possibly mixed with snow between 8am and 11am, then a chance of rain after 11am.  Snow level 6400 feet lowering to 5200 feet in the afternoon . Mostly cloudy, with a high near 50.

    High: 50 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain, mixing with snow after 8pm, then gradually ending.  Snow level 5000 feet lowering to 3300 feet after midnight . Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. Northeast wind around 15 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 58. Northeast wind 10 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 40. Northeast wind 5 to 9 mph.
Monday
Partly sunny, with a high near 57. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 48. South southwest wind 7 to 10 mph.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 53. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain. Low around 43. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely before 8am, then rain likely, possibly mixed with snow between 8am and 11am, then a chance of rain after 11am. Snow level 6400 feet lowering to 5200 feet in the afternoon . Mostly cloudy, with a high near 50.
Wednesday Night
A slight chance of rain, mixing with snow after 8pm, then gradually ending. Snow level 5000 feet lowering to 3300 feet after midnight . Mostly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 63.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Illinois Valley OR
 42.14°N 123.81°W (Elev. 3209 ft)
2:26 am PDT Mar 22, 2026
3am 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