Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

36°F

2°C

Humidity 92%
Wind Speed N 4 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 21 Feb 04:54 AM PST
Extended Forecast for

2 Miles N Sonoma CA

Cold Weather Advisory February 21, 05:05am until February 21, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory February 21, 05:05am until February 21, 09:00am

    NOW until 9:00am Sat

    Cold Weather Advisory

  • Today

    High: 54 °F

    Areas Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 43. East southeast wind 5 to 7 mph.

    Low: 43 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before 10am.  Mostly cloudy, with a high near 59. Calm wind becoming south around 6 mph in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 10pm.  Patchy fog.  Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Patchy
    Fog

  • Monday

    Monday: A 30 percent chance of rain after 4pm.  Areas of fog before 11am.  Otherwise, mostly cloudy, with a high near 62. Light and variable wind.  New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Areas Fog
    then Chance
    Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 10pm.  Patchy fog after midnight.  Otherwise, cloudy, with a low around 50. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Rain Likely
    and Patchy
    Fog

  • Tuesday

    Tuesday: Rain.  High near 58. Chance of precipitation is 90%.

    High: 58 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 10pm.  Patchy fog after 10pm.  Otherwise, cloudy, with a low around 48.

    Low: 48 °F

    Rain and
    Patchy Fog

Detailed Forecast

Today
Areas of fog before 9am. Otherwise, partly sunny, with a high near 54. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Tonight
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 43. East southeast wind 5 to 7 mph.
Sunday
A 30 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 59. Calm wind becoming south around 6 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 20 percent chance of rain before 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Monday
A 30 percent chance of rain after 4pm. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 62. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely, mainly after 10pm. Patchy fog after midnight. Otherwise, cloudy, with a low around 50. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain. High near 58. Chance of precipitation is 90%.
Tuesday Night
Rain, mainly before 10pm. Patchy fog after 10pm. Otherwise, cloudy, with a low around 48.
Wednesday
A chance of rain. Areas of fog before noon. Otherwise, mostly cloudy, with a high near 61.
Wednesday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 45.
Thursday
A slight chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 65.
Thursday Night
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Friday
Patchy fog. Otherwise, mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Sonoma CA
 38.31°N 122.46°W (Elev. 571 ft)
12:26 am PST Feb 21, 2026
5am PST Feb 21, 2026-6pm PST Feb 27, 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