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

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

63°F

17°C

Humidity 67%
Wind Speed SW 6 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Nov 01:15 PM PST
Extended Forecast for

6 Miles NNE Lake Berryessa CA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly cloudy, with a high near 56. South wind around 7 mph.

    High: 56 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Calm wind becoming south around 5 mph after midnight.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain, mainly after 11am. High near 53. South wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain Likely
    then Rain

  • Sunday Night

    Sunday Night: Rain, mainly before midnight. Patchy fog before 9pm. Low around 45. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain and
    Patchy Fog
    then Slight
    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 54. Calm wind becoming west southwest around 6 mph in the morning.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Rain after 10pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain

  • Wednesday

    Wednesday: Rain. Cloudy, with a high near 48.

    High: 48 °F

    Rain

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a high near 56. South wind around 7 mph.
Tonight
Mostly cloudy, with a low around 49. Calm wind becoming south around 5 mph after midnight.
Sunday
Rain, mainly after 11am. High near 53. South wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain, mainly before midnight. Patchy fog before 9pm. Low around 45. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Mostly sunny, with a high near 54. Calm wind becoming west southwest around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Rain after 10pm. Mostly cloudy, with a low around 44.
Wednesday
Rain. Cloudy, with a high near 48.
Wednesday Night
Rain. Mostly cloudy, with a low around 43.
Thursday
Rain. Mostly cloudy, with a high near 48.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Lake Berryessa CA
 38.67°N 122.21°W (Elev. 1598 ft)
Last Update:
12:46 pm PST Nov 14, 2026
Forecast Valid:
1pm PST Nov 14, 2026-6pm PST Nov 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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