Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

43°F

6°C

Humidity 73%
Wind Speed ENE 3 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 29 Dec 03:54 AM PST
Extended Forecast for

2 Miles SSW Lake Berryessa CA

  • Today

    Today: Sunny, with a high near 54. North northeast wind 5 to 9 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 39. North wind 3 to 5 mph.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53. Northeast wind around 6 mph.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. North wind around 5 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after 4pm.  Partly sunny, with a high near 51. Northeast wind around 6 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 10pm.  Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain Likely

  • New Year's Day

    New Year's Day: Rain likely.  Mostly cloudy, with a high near 50. Chance of precipitation is 70%.

    High: 50 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely.  Cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

  • Friday

    Friday: Rain likely.  Mostly cloudy, with a high near 51.

    High: 51 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 54. North northeast wind 5 to 9 mph.
Tonight
Clear, with a low around 39. North wind 3 to 5 mph.
Tuesday
Sunny, with a high near 53. Northeast wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 42. North wind around 5 mph.
Wednesday
A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 51. Northeast wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain likely. Mostly cloudy, with a high near 50. Chance of precipitation is 70%.
Thursday Night
Rain likely. Cloudy, with a low around 48.
Friday
Rain likely. Mostly cloudy, with a high near 51.
Friday Night
Rain likely. Mostly cloudy, with a low around 46.
Saturday
Rain likely. Mostly cloudy, with a high near 50.
Saturday Night
Rain likely. Mostly cloudy, with a low around 46.
Sunday
Rain likely. Mostly cloudy, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lake Berryessa CA
 38.54°N 122.26°W (Elev. 1824 ft)
12:27 am PST Dec 29, 2025
4am PST Dec 29, 2025-6pm PST Jan 4, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database