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 93%
Wind Speed NNE 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 21 Feb 05:15 AM PST
Extended Forecast for

2 Miles SE Napa Co. Airport CA

Cold Weather Advisory February 21, 05:41am until February 21, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory February 21, 05:41am until February 21, 09:00am

    NOW until 9:00am Sat

    Cold Weather Advisory

  • Today

    High: 57 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A 10 percent chance of rain after 4am.  Increasing clouds, with a low around 43. East southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Clear
    then Slight
    Chance Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 10am.  Partly sunny, with a high near 61. East southeast wind around 9 mph becoming south in the afternoon.

    High: 61 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45. West wind around 6 mph becoming calm  in the evening.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of rain after 4pm.  Partly sunny, with a high near 62. East wind 3 to 6 mph.

    High: 62 °F

    Partly Sunny
    then Chance
    Rain

  • Monday Night

    Monday Night: Rain, mainly after 10pm.  Low around 53. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Rain

  • Tuesday

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

    High: 58 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 10pm.  Cloudy, with a low around 51.

    Low: 51 °F

    Rain Likely

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 57. East wind 6 to 14 mph becoming south in the afternoon. Winds could gust as high as 23 mph.
Tonight
A 10 percent chance of rain after 4am. Increasing clouds, with a low around 43. East southeast wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 61. East southeast wind around 9 mph becoming south in the afternoon.
Sunday Night
Mostly cloudy, with a low around 45. West wind around 6 mph becoming calm in the evening.
Monday
A 30 percent chance of rain after 4pm. Partly sunny, with a high near 62. East wind 3 to 6 mph.
Monday Night
Rain, mainly after 10pm. Low around 53. Chance of precipitation is 80%. 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 likely, mainly before 10pm. Cloudy, with a low around 51.
Wednesday
A chance of rain. Mostly cloudy, with a high near 61.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Thursday
A slight chance of rain. Partly sunny, with a high near 65.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Napa Co. Airport CA
 38.18°N 122.26°W (Elev. 56 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