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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Rain

54°F

12°C

Humidity 76%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 46°F (8°C)
Visibility 8.00 mi
Last update 27 Jan 06:00 PM PST
Extended Forecast for

Napa CA

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Patchy fog after 2am. Otherwise, cloudy, with a low around 46. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain Likely
    and Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog between 9am and 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog. Otherwise, partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 11am. Otherwise, mostly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before 11am. Otherwise, partly sunny, with a high near 63.

    High: 63 °F

    Areas Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 42.

    Low: 42 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain after 4am. Patchy fog. Otherwise, mostly cloudy, with a low around 43.

    Low: 43 °F

    Patchy Fog
    then Slight
    Chance Rain
    and Patchy
    Fog

Detailed Forecast

Tonight
Rain likely, mainly before 10pm. Patchy fog after 2am. Otherwise, cloudy, with a low around 46. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Patchy fog between 9am and 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 40. Calm wind.
Thursday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 62. Calm wind.
Thursday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Friday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 63.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 42.
Saturday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 63.
Saturday Night
A slight chance of rain after 4am. Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Sunday
A chance of rain, mainly after 10am. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 60.
Sunday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 45.
Monday
Areas of fog. Otherwise, mostly sunny, with a high near 61.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
12:26 pm PST Jan 27, 2026
Forecast Valid:
6pm PST Jan 27, 2026-6pm PST Feb 3, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation