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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

59°F

15°C

Humidity 67%
Wind Speed W 14 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 07 Jan 01:35 PM PST
Extended Forecast for

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 57. West wind around 7 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 5 to 7 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 53. North wind 3 to 8 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. North wind 5 to 7 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 53. Calm wind becoming northeast around 6 mph in the morning.

    High: 53 °F

    Patchy Frost
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Areas of frost after 1am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 7am. Patchy frost before 9am. Otherwise, mostly sunny, with a high near 54.

    High: 54 °F

    Patchy Frost
    and Patchy
    Fog then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 57. West wind around 7 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 5 to 7 mph.
Thursday
Sunny, with a high near 53. North wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 37. North wind 5 to 7 mph.
Friday
Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 53. Calm wind becoming northeast around 6 mph in the morning.
Friday Night
Patchy fog after 5am. Areas of frost after 1am. Otherwise, mostly clear, with a low around 34.
Saturday
Patchy fog before 7am. Patchy frost before 9am. Otherwise, mostly sunny, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly cloudy, with a high near 56.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Patchy fog. Otherwise, sunny, with a high near 58.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 39.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
12:26 pm PST Jan 7, 2026
Forecast Valid:
1pm PST Jan 7, 2026-6pm PST Jan 13, 2026
 
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Additional Resources

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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