Critical Fire Weather in the High Plains; Heat Continues in the West

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

72°F

22°C

Humidity 73%
Wind Speed SW 3 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 18 Mar 07:35 PM PDT
Extended Forecast for

4 Miles N Sonoma CA

Heat Advisory March 18, 07:51pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 07:51pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 66 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 82. North northeast wind around 6 mph becoming light and variable.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 63. North northwest wind around 6 mph.

    Low: 63 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 83. North wind around 5 mph becoming light and variable.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. West northwest wind around 6 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 66. Northwest wind around 6 mph.
Thursday
Sunny, with a high near 82. North northeast wind around 6 mph becoming light and variable.
Thursday Night
Clear, with a low around 63. North northwest wind around 6 mph.
Friday
Sunny, with a high near 83. North wind around 5 mph becoming light and variable.
Friday Night
Partly cloudy, with a low around 63. West northwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 53.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 67.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sonoma CA
 38.36°N 122.45°W (Elev. 1818 ft)
3:12 pm PDT Mar 18, 2026
7pm PDT Mar 18, 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