Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

52°F

11°C

Humidity 81%
Wind Speed WSW 4 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 46°F (8°C)
Visibility 9.00 mi
Last update 19 Jan 11:00 AM PST
Extended Forecast for

4 Miles N Sonoma CA

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 61. North wind around 5 mph becoming calm  in the afternoon.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 52. North northeast wind 3 to 7 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. Northeast wind 3 to 7 mph.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49. North wind 3 to 5 mph.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 56. North northeast wind around 5 mph becoming calm  in the morning.

    High: 56 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

M.L.King Day
Sunny, with a high near 61. North wind around 5 mph becoming calm in the afternoon.
Tonight
Partly cloudy, with a low around 52. North northeast wind 3 to 7 mph.
Tuesday
Partly sunny, with a high near 57. Northeast wind 3 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 49. North wind 3 to 5 mph.
Wednesday
Mostly cloudy, with a high near 56. North northeast wind around 5 mph becoming calm in the morning.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sonoma CA
 38.36°N 122.45°W (Elev. 1818 ft)
11:13 am PST Jan 19, 2026
11am PST Jan 19, 2026-6pm PST Jan 25, 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