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

Lingering Winter Weather in Interior New England; Snow Squalls Developing Downwind of the Lower Great Lakes

A wintry mix will continue in interior New England through tonight as a coastal storm quickly passes to the east. Heavy snow is expected in northern Maine, with a coating of ice expected for much of interior New England. Behind this storm system, lake effect snow and snow squalls will develop from the Ohio Valley to interior New England through Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

37°F

3°C

Humidity 93%
Wind Speed NNE 4 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Jan 02:35 AM PST
Extended Forecast for

Sonoma CA

Cold Weather Advisory until January 12, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 12, 09:00am

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Overnight

    Low: 35 °F

    Areas Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 58. Light and variable wind.

    High: 58 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, sunny, with a high near 61.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

Overnight
Areas of frost after 5am. Otherwise, mostly clear, with a low around 35. Calm wind.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 58. Light and variable wind.
Monday Night
Mostly clear, with a low around 37. Calm wind.
Tuesday
Sunny, with a high near 61. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 38. Calm wind.
Wednesday
Patchy fog before 10am. Otherwise, sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
Last Update:
12:26 am PST Jan 12, 2026
Forecast Valid:
2am PST Jan 12, 2026-6pm PST Jan 18, 2026
 
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