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

39°F

4°C

Humidity 100%
Wind Speed N 6 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 39°F (4°C)
Visibility 8.00 mi
Wind Chill35°F (2°C)
Last update 19 Jan 06:00 AM PST
Extended Forecast for

7 Miles WSW Napa Co. Airport CA

  • M.L.King Day

    M.L.King Day: Patchy dense fog before 10am.  Otherwise, mostly sunny, with a high near 61. Calm wind becoming southeast around 5 mph.

    High: 61 °F

    Patchy Dense
    Fog then
    Sunny

  • Tonight

    Tonight: Patchy fog after 9pm.  Otherwise, partly cloudy, with a low around 42. Light northeast wind.

    Low: 42 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, partly sunny, with a high near 61. East northeast wind around 6 mph.

    High: 61 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog before 1am, then patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 45.

    Low: 45 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog.  Otherwise, mostly clear, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before noon.  Otherwise, mostly sunny, with a high near 59.

    High: 59 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

M.L.King Day
Patchy dense fog before 10am. Otherwise, mostly sunny, with a high near 61. Calm wind becoming southeast around 5 mph.
Tonight
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 42. Light northeast wind.
Tuesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 61. East northeast wind around 6 mph.
Tuesday Night
Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Wednesday
Partly sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 45.
Thursday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 60.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Friday
Patchy fog before noon. Otherwise, mostly sunny, with a high near 59.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 58.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 43.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Napa Co. Airport CA
 38.17°N 122.37°W (Elev. 3 ft)
12:26 am PST Jan 19, 2026
6am PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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