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Areas of Hazardous Weather This Weekend

A series of cold fronts from North Pacific storms will bring periods of gusty winds, low elevation rainfall, and high elevation snow to the Pacific Northwest this weekend into next week. Heavy to excessive rainfall may produce areas of flooding over southern Texas this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

67°F

19°C

Humidity 52%
Wind Speed SSW 6 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 07 Nov 03:54 PM PST
Extended Forecast for

4 Miles E Saint Helena CA

Coastal Flood Advisory November 7, 04:02pm until November 13, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory November 7, 04:02pm until November 13, 04:00pm

    NOW until 4:00pm Fri

    Coastal Flood Advisory

  • Tonight

    Low: 44 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 74. Calm wind.

    High: 74 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Monday

    Monday: Areas of fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Calm wind becoming west around 5 mph in the afternoon.

    High: 74 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Patchy fog before 8am. Otherwise, sunny, with a high near 76.

    High: 76 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 44. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 74. Calm wind.
Sunday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 46. Calm wind.
Monday
Areas of fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 46. Calm wind.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 45.
Veterans Day
Patchy fog before 8am. Otherwise, sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 46.
Friday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 68.
Friday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Saturday
A chance of rain. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Saint Helena CA
 38.5°N 122.4°W (Elev. 476 ft)
Last Update:
12:26 pm PST Nov 7, 2026
Forecast Valid:
4pm PST Nov 7, 2026-6pm PST Nov 14, 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