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

Snow Squalls May Impact the Northeast on Thursday; Dangerously Cold Arctic Air Impact the North-Central US

Snow showers and snow squalls are likely to develop across the Northeast on Thursday. Lake effect snow will persist downwind of the Great Lakes. An arctic blast will bring frigid temperatures, gusty winds and dangerous wind chills to the Northern Plains before expanding to the South and East. A major winter storm will begin impacting the Southern Plains and Lower Mississippi Valley Friday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

45°F

7°C

Humidity 100%
Wind Speed N 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 45°F (7°C)
Visibility 5.00 mi
Wind Chill42°F (6°C)
Last update 22 Jan 02:55 AM PST
Extended Forecast for

2 Miles N Napa Co. Airport CA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Widespread dense fog, mainly between 11pm and 4am. Otherwise, increasing clouds, with a low around 44. Calm wind.

    Low: 44 °F

    Dense Fog

  • Friday

    Friday: Widespread dense fog, mainly before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind.

    High: 57 °F

    Dense Fog

  • Friday Night

    Friday Night: Patchy fog between 7pm and 1am. Otherwise, partly cloudy, with a low around 42. Calm wind becoming north northwest around 5 mph after midnight.

    Low: 42 °F

    Patchy Fog

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Thursday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
Widespread dense fog, mainly between 11pm and 4am. Otherwise, increasing clouds, with a low around 44. Calm wind.
Friday
Widespread dense fog, mainly before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind.
Friday Night
Patchy fog between 7pm and 1am. Otherwise, partly cloudy, with a low around 42. Calm wind becoming north northwest around 5 mph after midnight.
Saturday
Sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Partly sunny, with a high near 58.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 39.
Tuesday
Areas of fog. Otherwise, partly sunny, with a high near 57.
Tuesday Night
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Napa Co. Airport CA
 38.25°N 122.27°W (Elev. 59 ft)
Last Update:
3:11 am PST Jan 22, 2026
Forecast Valid:
3am PST Jan 22, 2026-6pm PST Jan 28, 2026
 
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