National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

82°F

28°C

Humidity 24%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index80°F (27°C)
Last update 20 Mar 02:52 PM PDT
Extended Forecast for

14 Miles S Murphy OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming light and variable after midnight.

    Low: 51 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 54. North wind 3 to 8 mph.

    High: 54 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. North wind 6 to 8 mph becoming east after midnight.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 57. Northeast wind around 6 mph.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43. North wind 3 to 6 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming light and variable after midnight.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 54. North wind 3 to 8 mph.
Saturday Night
Mostly clear, with a low around 37. North wind 6 to 8 mph becoming east after midnight.
Sunday
Mostly sunny, with a high near 57. Northeast wind around 6 mph.
Sunday Night
Mostly cloudy, with a low around 43. North wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 51.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Wednesday
A chance of rain before 11am. Snow level 6800 feet lowering to 6000 feet in the afternoon . Partly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles S Murphy OR
 42.15°N 123.34°W (Elev. 3570 ft)
Last Update:
1:41 pm PDT Mar 20, 2026
Forecast Valid:
3pm PDT Mar 20, 2026-6pm PDT Mar 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation