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

Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through the day. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

46°F

8°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 02 Feb 08:54 AM PST
Extended Forecast for

Napa CA

Coastal Flood Advisory until February 2, 01:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory until February 2, 01:00pm

    NOW until 1:00pm Mon

    Coastal Flood Advisory

  • Today

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, sunny, with a high near 68. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 68 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 42.

    Low: 42 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 67. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 41. Calm wind.
Tuesday
Areas of fog before 9am. Otherwise, sunny, with a high near 68. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 41. Calm wind.
Wednesday
Sunny, with a high near 68. Calm wind becoming east northeast around 5 mph in the afternoon.
Wednesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 42.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 66.
Friday Night
Widespread fog after 9pm. Otherwise, partly cloudy, with a low around 44.
Saturday
Widespread fog. Otherwise, mostly sunny, with a high near 65.
Saturday Night
Widespread fog. Otherwise, partly cloudy, with a low around 45.
Sunday
A slight chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 66.
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 Feb 2, 2026
Forecast Valid:
9am PST Feb 2, 2026-6pm PST Feb 8, 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