Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

43°F

6°C

Humidity 92%
Wind Speed E 18 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 41°F (5°C)
Visibility 6.00 mi
Wind Chill35°F (2°C)
Last update 25 Jan 02:54 AM PST
Extended Forecast for

5 Miles SSE Sonoma CA

  • Overnight

    Overnight: Patchy frost.  Otherwise, partly cloudy, with a low around 35. South southeast wind around 6 mph.

    Low: 35 °F

    Patchy Frost

  • Sunday

    Sunday: Areas of frost before 9am.  Otherwise, increasing clouds, with a high near 52. East southeast wind 5 to 8 mph.

    High: 52 °F

    Areas Frost
    then Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. East northeast wind 3 to 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Patchy fog before 7am.  Otherwise, sunny, with a high near 59. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 59 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy frost before 7am.  Otherwise, mostly sunny, with a high near 57.

    High: 57 °F

    Patchy Frost
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 10pm.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: A chance of rain, mainly before 10am.  Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 57.

    High: 57 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Overnight
Patchy frost. Otherwise, partly cloudy, with a low around 35. South southeast wind around 6 mph.
Sunday
Areas of frost before 9am. Otherwise, increasing clouds, with a high near 52. East southeast wind 5 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 38. East northeast wind 3 to 5 mph.
Monday
Patchy fog before 7am. Otherwise, sunny, with a high near 59. Calm wind becoming east southeast around 6 mph in the afternoon.
Monday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 37. Calm wind.
Tuesday
Patchy frost before 7am. Otherwise, mostly sunny, with a high near 57.
Tuesday Night
A 30 percent chance of rain after 10pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 43.
Wednesday
A chance of rain, mainly before 10am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 57.
Wednesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 41.
Thursday
Areas of fog before noon. Otherwise, mostly sunny, with a high near 61.
Thursday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 44.
Friday
Areas of fog. Otherwise, mostly cloudy, with a high near 61.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Saturday
Patchy fog. Otherwise, mostly cloudy, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Sonoma CA
 38.22°N 122.44°W (Elev. 3 ft)
1:27 am PST Jan 25, 2026
3am PST Jan 25, 2026-6pm PST Jan 31, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database