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

Heavy Snow and Disruptive Ice in the Upper Midwest; Severe Thunderstorms in the Southern Plains

A late season winter storm will produce a combination of heavy snow and disruptive ice starting this evening in the Northern Plains and moving into the Upper Midwest and Great Lakes by tonight continuing through Thursday. Severe thunderstorms will likely produce severe wind gusts, large hail, a few tornadoes, and heavy rainfall across the southern and central Plains today. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

59°F

15°C

Humidity 82%
Wind Speed SSW 13 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 01 Apr 10:10 AM PDT
Extended Forecast for

5 Miles SSW Lake Berryessa CA

  • Today

    Today: Rain, mainly before 1pm. High near 56. Southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Tonight

    Tonight: Rain, mainly before midnight. Low around 41. West wind 7 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 62. West wind 7 to 9 mph becoming north northeast in the afternoon.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47. North wind 8 to 16 mph, with gusts as high as 36 mph.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 72. North wind 13 to 18 mph, with gusts as high as 36 mph.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Rain, mainly before 1pm. High near 56. Southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain, mainly before midnight. Low around 41. West wind 7 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Sunny, with a high near 62. West wind 7 to 9 mph becoming north northeast in the afternoon.
Thursday Night
Clear, with a low around 47. North wind 8 to 16 mph, with gusts as high as 36 mph.
Friday
Sunny, with a high near 72. North wind 13 to 18 mph, with gusts as high as 36 mph.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
Last Update:
2:36 am PDT Apr 1, 2026
Forecast Valid:
10am PDT Apr 1, 2026-6pm PDT Apr 7, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation