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

16 Miles SE Agness OR

  • Overnight

    Overnight: Partly cloudy, with a low around 40. East wind around 13 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60. East wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 60 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42. East northeast wind 6 to 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 61. Light and variable wind becoming west 5 to 7 mph in the afternoon.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 51. South southwest wind 6 to 9 mph.

    Low: 51 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am.  Mostly cloudy, with a high near 55. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain.  Low around 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 11am.  Snow level 5700 feet lowering to 4600 feet in the afternoon . Partly sunny, with a high near 52.

    High: 52 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm.  Snow level 4400 feet lowering to 2600 feet after midnight . Partly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 40. East wind around 13 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 60. East wind 10 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 42. East northeast wind 6 to 10 mph.
Monday
Partly sunny, with a high near 61. Light and variable wind becoming west 5 to 7 mph in the afternoon.
Monday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 51. South southwest wind 6 to 9 mph.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 55. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain. Low around 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely, mainly before 11am. Snow level 5700 feet lowering to 4600 feet in the afternoon . Partly sunny, with a high near 52.
Wednesday Night
A chance of rain before 11pm. Snow level 4400 feet lowering to 2600 feet after midnight . Partly cloudy, with a low around 36.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 40.
Friday
Sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.4°N 123.83°W (Elev. 2582 ft)
3:21 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