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

Snow Squalls from the Upper Midwest to Great Lakes; High Winds in the Northern and Central Plains

An Arctic front will bring widespread snow squalls through Friday from the Upper Midwest to the Ohio Valley. Heavy snow rates and strong winds will lead to near-zero visibility and dangerous travel conditions. High winds will continue across the northern and central High Plains through Friday, with wind gusts above 60 mph likely, leading to hazardous travel conditions. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Fog

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 39°F (4°C)
Visibility 0.25 mi
Last update 16 Jan 01:38 AM PST
Extended Forecast for

2 Miles NW Napa Co. Airport CA

Dense Fog Advisory January 16, 01:47am until January 16, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory January 16, 01:47am until January 16, 09:00am

    NOW until 9:00am Fri

    Dense Fog Advisory

  • Overnight

    Low: 42 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 66. East wind 5 to 8 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 42. Calm wind becoming northeast 5 to 7 mph in the evening.

    Low: 42 °F

    Clear then
    Patchy Fog

  • Saturday

    Saturday: Patchy dense fog before 8am. Otherwise, mostly sunny, with a high near 64. Light northeast wind becoming east 6 to 11 mph in the morning.

    High: 64 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 41.

    Low: 41 °F

    Partly Cloudy
    then Patchy
    Fog

  • M.L.King Day

    M.L.King Day: Patchy fog before 8am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Overnight
Clear, with a low around 42. East northeast wind around 7 mph.
Friday
Sunny, with a high near 66. East wind 5 to 8 mph.
Friday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 42. Calm wind becoming northeast 5 to 7 mph in the evening.
Saturday
Patchy dense fog before 8am. Otherwise, mostly sunny, with a high near 64. Light northeast wind becoming east 6 to 11 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 42. Calm wind.
Sunday
Partly sunny, with a high near 63.
Sunday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 41.
M.L.King Day
Patchy fog before 8am. Otherwise, sunny, with a high near 62.
Monday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 40.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 61.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 42.
Wednesday
Areas of fog. Otherwise, partly sunny, with a high near 59.
Wednesday Night
Widespread fog. Otherwise, partly cloudy, with a low around 43.
Thursday
Widespread fog. Otherwise, partly sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Napa Co. Airport CA
 38.22°N 122.3°W (Elev. 3 ft)
Last Update:
12:26 am PST Jan 16, 2026
Forecast Valid:
1am PST Jan 16, 2026-6pm PST Jan 22, 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