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

Tracking Winter Weather and Frigid Temperatures This Weekend

Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

41°F

5°C

Humidity 95%
Wind Speed N 5 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 40°F (4°C)
Visibility 6.00 mi
Wind Chill38°F (3°C)
Last update 18 Jan 02:54 AM PST
Extended Forecast for

Napa CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 65. Calm wind.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 64. Calm wind.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog. Otherwise, mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog between 11pm and 2am. Otherwise, partly cloudy, with a low around 41.

    Low: 41 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. Calm wind.
Sunday
Mostly sunny, with a high near 65. Calm wind.
Sunday Night
Partly cloudy, with a low around 43. Calm wind.
M.L.King Day
Sunny, with a high near 64. Calm wind.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 41. Calm wind.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 63.
Tuesday Night
Patchy fog between 11pm and 2am. Otherwise, partly cloudy, with a low around 41.
Wednesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 62.
Wednesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 44.
Thursday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 62.
Thursday Night
Areas of fog. Otherwise, partly cloudy, with a low around 42.
Friday
Areas of fog. Otherwise, mostly sunny, with a high near 60.
Friday Night
Areas of fog. Otherwise, partly cloudy, with a low around 41.
Saturday
Areas of fog. Otherwise, partly sunny, with a high near 59.
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:
12:26 am PST Jan 18, 2026
Forecast Valid:
3am PST Jan 18, 2026-6pm PST Jan 24, 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