Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

73°F

23°C

Humidity 27%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 19 Mar 12:52 PM PDT
Extended Forecast for

16 Miles SE Agness OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. West southwest wind 6 to 8 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. West wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 74. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly after 11pm.  Mostly cloudy, with a low around 49. North northwest wind 6 to 8 mph.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 11am.  Mostly sunny, with a high near 61. North wind 6 to 9 mph.

    High: 61 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 77. West southwest wind 6 to 8 mph.
Tonight
Mostly clear, with a low around 54. West wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 74. Calm wind becoming west 5 to 7 mph in the afternoon.
Friday Night
A 40 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 49. North northwest wind 6 to 8 mph.
Saturday
A 30 percent chance of showers before 11am. Mostly sunny, with a high near 61. North wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 69.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 51.
Tuesday
A chance of showers. Partly sunny, with a high near 65.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 44.
Wednesday
A chance of showers. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
10:41 am PDT Mar 19, 2026
1pm PDT Mar 19, 2026-6pm PDT Mar 25, 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