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

Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

48°F

9°C

Humidity 87%
Wind Speed E 11 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 20 Jan 01:35 PM PST
Extended Forecast for

Napa Co. Airport CA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 58. East wind around 8 mph.

    High: 58 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog before 2am, then patchy fog after 5am. Otherwise, cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, cloudy, with a high near 58. Light and variable wind.

    High: 58 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 11am. Otherwise, partly sunny, with a high near 60. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 60 °F

    Areas Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 43.

    Low: 43 °F

    Patchy Fog

  • Friday

    Friday: Widespread fog, mainly before 7am. Otherwise, mostly sunny, with a high near 59.

    High: 59 °F

    Fog then
    Sunny

  • Friday Night

    Friday Night: Patchy fog before 3am, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 40.

    Low: 40 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 59.

    High: 59 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 58. East wind around 8 mph.
Tonight
Patchy fog before 2am, then patchy fog after 5am. Otherwise, cloudy, with a low around 43. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, cloudy, with a high near 58. Light and variable wind.
Wednesday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Thursday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 60. Calm wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 43.
Friday
Widespread fog, mainly before 7am. Otherwise, mostly sunny, with a high near 59.
Friday Night
Patchy fog before 3am, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 40.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 59.
Saturday Night
Patchy fog between midnight and 3am. Otherwise, partly cloudy, with a low around 40.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 57.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 41.
Monday
Patchy fog. Otherwise, partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa Co. Airport CA
 38.2°N 122.29°W (Elev. 20 ft)
Last Update:
12:26 pm PST Jan 20, 2026
Forecast Valid:
1pm PST Jan 20, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

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