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

A Couple of Fast Moving Storms Affecting Areas Along and East of the Rockies

A couple of storm systems will impact travel conditions through the first half of this weekend. Heavy snow from the mountains of the West will move into the upper Midwest and upper Great Lakes through tonight. Record warmth and Gulf moisture along and east of the Mississippi River will fuel severe thunderstorms, heavy rainfall, fog for the Tennessee Valley and deep South on Friday into Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

55°F

13°C

Humidity 30%
Wind Speed N 16 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 08 Jan 03:00 PM PST
Extended Forecast for

Napa CA

Cold Weather Advisory January 9, 01:00am until January 9, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 37. North wind 3 to 6 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 54. Calm wind becoming northeast around 6 mph in the morning.

    High: 54 °F

    Patchy Frost
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Areas of frost after 1am. Otherwise, mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Patchy fog between 11pm and 2am. Otherwise, partly cloudy, with a low around 37.

    Low: 37 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. North wind 3 to 6 mph.
Friday
Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 54. Calm wind becoming northeast around 6 mph in the morning.
Friday Night
Patchy fog after 5am. Areas of frost after 1am. Otherwise, mostly clear, with a low around 34. Calm wind.
Saturday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming east northeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 36. Calm wind.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Patchy fog between 11pm and 2am. Otherwise, partly cloudy, with a low around 37.
Monday
Patchy fog before 10am. Otherwise, sunny, with a high near 58.
Monday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 40.
Tuesday
Patchy fog before 9am. Otherwise, sunny, with a high near 60.
Tuesday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Wednesday
Patchy fog. Otherwise, sunny, with a high near 62.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Thursday
Patchy fog. Otherwise, sunny, with a high near 64.
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 pm PST Jan 8, 2026
Forecast Valid:
3pm PST Jan 8, 2026-6pm PST Jan 15, 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