National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms Likely in the Central U.S.; Flooding Possible for portions of Oklahoma/Texas/Arkansas and the Marianas.

Severe thunderstorms are likely from the southern Plains to the Midwest through Friday. Large hail, damaging winds, and tornadoes are all possible. An Enhanced (level 3 of 5) risk is in effect. Flash flooding is possible across portions of Oklahoma, Texas, and Arkansas on Friday. A Slight (level 2 of 4) risk is in effect. Flooding rain may impact Guam and the Marianas through next week. 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 54%
Wind Speed SE 5 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 05 Mar 10:00 AM PST
Extended Forecast for

Napa CA

  • Today

    Today: Sunny, with a high near 67. North wind 18 to 20 mph, with gusts as high as 29 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. North northwest wind 7 to 16 mph, with gusts as high as 39 mph.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 72. Breezy, with a north wind 18 to 23 mph, with gusts as high as 39 mph.

    High: 72 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. North wind 8 to 11 mph, with gusts as high as 24 mph.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. North northeast wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after midnight. Otherwise, mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 67. North wind 18 to 20 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 49. North northwest wind 7 to 16 mph, with gusts as high as 39 mph.
Friday
Sunny, with a high near 72. Breezy, with a north wind 18 to 23 mph, with gusts as high as 39 mph.
Friday Night
Mostly clear, with a low around 56. North wind 8 to 11 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 76. North northeast wind 9 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Clear, with a low around 52.
Sunday
Sunny, with a high near 79.
Sunday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 51.
Monday
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
12:46 am PST Mar 5, 2026
Forecast Valid:
10am PST Mar 5, 2026-6pm PDT Mar 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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