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.

Clear

48°F

9°C

Humidity 93%
Wind Speed E 4 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 46°F (8°C)
Visibility 7.00 mi
Wind Chill47°F (8°C)
Last update 21 Jan 08:00 PM PST
Extended Forecast for

2 Miles NNW Napa CA

  • Tonight

    Tonight: Patchy fog before 9pm, then patchy fog after 5am. Otherwise, cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 4am. Otherwise, increasing clouds, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Calm wind.

    High: 58 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37.

    Low: 37 °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 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog before 9pm, then patchy fog after 5am. Otherwise, cloudy, with a low around 44. Calm wind.
Thursday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 61. Light and variable wind.
Thursday Night
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 43. Calm wind.
Friday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Calm wind.
Friday Night
Mostly clear, with a low around 42. Calm wind.
Saturday
Sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Napa CA
 38.31°N 122.32°W (Elev. 98 ft)
Last Update:
2:22 pm PST Jan 21, 2026
Forecast Valid:
8pm PST Jan 21, 2026-6pm PST Jan 28, 2026
 
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Additional Resources

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