Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

57°F

14°C

Humidity 67%
Wind Speed W 3 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Jan 01:00 PM PST
Extended Forecast for

2 Miles SE Napa Co. Airport CA

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 62. East wind around 6 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Patchy dense fog.  Otherwise, increasing clouds, with a low around 39. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 39 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. East northeast wind around 7 mph.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. Light east northeast wind.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am.  Otherwise, cloudy, with a low around 47.

    Low: 47 °F

    Cloudy then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

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

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

M.L.King Day
Sunny, with a high near 62. East wind around 6 mph.
Tonight
Patchy dense fog. Otherwise, increasing clouds, with a low around 39. Calm wind becoming east northeast around 5 mph after midnight.
Tuesday
Partly sunny, with a high near 57. East northeast wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 45. Calm wind.
Wednesday
Mostly cloudy, with a high near 58. Light east northeast wind.
Wednesday Night
Patchy fog after 5am. Otherwise, cloudy, with a low around 47.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Napa Co. Airport CA
 38.18°N 122.26°W (Elev. 56 ft)
1:15 pm PST Jan 19, 2026
1pm PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database