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

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Clear

57°F

14°C

Humidity 93%
Wind Speed SSE 3 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 21 Mar 04:15 AM PDT
Extended Forecast for

4 Miles N Sonoma CA

  • Today

    Today: Mostly sunny, with a high near 75. North wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph.

    High: 75 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. West northwest wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 72. North northwest wind around 6 mph becoming west southwest in the afternoon.

    High: 72 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52. West wind around 7 mph.

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 70. West southwest wind around 7 mph.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 75. North wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 57. West northwest wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 72. North northwest wind around 6 mph becoming west southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 52. West wind around 7 mph.
Monday
Sunny, with a high near 70. West southwest wind around 7 mph.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sonoma CA
 38.36°N 122.45°W (Elev. 1818 ft)
Last Update:
2:22 am PDT Mar 21, 2026
Forecast Valid:
4am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
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Additional Resources

Radar & Satellite Image

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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