Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mostly Cloudy

55°F

13°C

Humidity 93%
Wind Speed WNW 8 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 01 Mar 07:00 AM PST
Extended Forecast for

Napa CA

  • Today

    Today: Areas of fog before 11am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 64 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 10pm.  Widespread fog after 9pm.  Otherwise, mostly cloudy, with a low around 49. West southwest wind around 5 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Slight Chance
    Rain and Fog

  • Monday

    Monday: Widespread fog, mainly before 9am.  Otherwise, mostly sunny, with a high near 65. Calm wind.

    High: 65 °F

    Fog then
    Mostly Sunny

  • Monday Night

    Monday Night: Widespread fog, mainly after 11pm.  Otherwise, partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Fog

  • Tuesday

    Tuesday: Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 66. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 66 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 9pm.  Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 67.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Areas of fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Calm wind becoming west southwest around 6 mph in the afternoon.
Tonight
A 20 percent chance of rain after 10pm. Widespread fog after 9pm. Otherwise, mostly cloudy, with a low around 49. West southwest wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Monday
Widespread fog, mainly before 9am. Otherwise, mostly sunny, with a high near 65. Calm wind.
Monday Night
Widespread fog, mainly after 11pm. Otherwise, partly cloudy, with a low around 46. Calm wind.
Tuesday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 46.
Wednesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 67.
Wednesday Night
Clear, with a low around 43.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
1:17 am PST Mar 1, 2026
7am PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database