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

Heavy Snow in the Cascades and Northern Rockies; Wintry Mix in the Northeast; High Winds in Southern California

Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. today. High winds could blow down trees and power lines in the mountains of southern California this evening through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

57°F

14°C

Humidity 68%
Wind Speed WSW 5 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 07 Jan 11:54 AM PST
Extended Forecast for

3 Miles SSE Napa CA

Extreme Cold Watch January 9, 01:00am until January 9, 09:00am
Click here for hazard details and duration
Extreme Cold Watch

  • This Afternoon

    This Afternoon: Sunny, with a high near 58. West wind 7 to 9 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 6 to 9 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 53. North wind 6 to 9 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36. North wind 6 to 8 mph.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 52. East northeast wind 3 to 7 mph.

    High: 52 °F

    Patchy Frost
    then Sunny

  • Friday Night

    Friday Night: Patchy frost after midnight. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Patchy frost before 9am. Otherwise, mostly sunny, with a high near 54.

    High: 54 °F

    Patchy Frost
    then Mostly
    Sunny

  • Saturday Night

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

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 58. West wind 7 to 9 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 6 to 9 mph.
Thursday
Sunny, with a high near 53. North wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 36. North wind 6 to 8 mph.
Friday
Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 52. East northeast wind 3 to 7 mph.
Friday Night
Patchy frost after midnight. Otherwise, mostly clear, with a low around 34.
Saturday
Patchy frost before 9am. Otherwise, mostly sunny, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Napa CA
 38.25°N 122.27°W (Elev. 59 ft)
Last Update:
11:26 am PST Jan 7, 2026
Forecast Valid:
12pm PST Jan 7, 2026-6pm PST Jan 13, 2026
 
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Additional Resources

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Chance of Precipitation