Storm System to Move Across the Ohio Valley to the Mid-Atlantic and Northeast

Isolated severe thunderstorms will be possible on Veterans Day across parts of the lower Ohio and western Tennessee Valleys. A developing storm will bring rain and gusty winds to the Mid-Atlantic and Northeast on Thursday, with the first accumulating snow likely in the higher elevations of the central Appalachians and interior Northeast. 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 100%
Wind Speed ESE 3 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 10 Nov 10:55 PM PST
Extended Forecast for

4 Miles SE Saint Helena CA

Coastal Flood Advisory November 10, 11:01pm until November 13, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory November 10, 11:01pm until November 13, 04:00pm

    NOW until 4:00pm Fri

    Coastal Flood Advisory

  • Tonight

    Low: 45 °F

    Areas Fog

  • Veterans Day

    Veterans Day: Patchy fog before 9am.  Otherwise, sunny, with a high near 77. Light and variable wind.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am.  Otherwise, increasing clouds, with a low around 45. Calm wind.

    Low: 45 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 72. Calm wind becoming south around 6 mph in the morning.

    High: 72 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Rain, mainly after 4am.  Areas of fog after 9pm. Low around 49. Calm wind.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Chance Rain
    and Areas Fog
    then Rain and
    Areas Fog

  • Friday

    Friday: Rain and possibly a thunderstorm.  High near 60. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 60 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm.  Areas of fog after 1am.  Otherwise, mostly cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely
    then Chance
    Rain and
    Areas Fog

  • Saturday

    Saturday: A slight chance of rain.  Areas of fog before 11am.  Otherwise, partly sunny, with a high near 63.

    High: 63 °F

    Slight Chance
    Rain and
    Areas Fog

Detailed Forecast

Tonight
Areas of fog. Otherwise, mostly clear, with a low around 45. Calm wind.
Veterans Day
Patchy fog before 9am. Otherwise, sunny, with a high near 77. Light and variable wind.
Wednesday Night
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 45. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 72. Calm wind becoming south around 6 mph in the morning.
Thursday Night
Rain, mainly after 4am. Areas of fog after 9pm. Low around 49. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain and possibly a thunderstorm. High near 60. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday Night
Rain likely, mainly before 10pm. Areas of fog after 1am. Otherwise, mostly cloudy, with a low around 42. Chance of precipitation is 70%.
Saturday
A slight chance of rain. Areas of fog before 11am. Otherwise, partly sunny, with a high near 63.
Saturday Night
A chance of rain after 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 44.
Sunday
Rain, mainly after 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 59.
Sunday Night
Rain. Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Monday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 59.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 37.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Saint Helena CA
 38.45°N 122.41°W (Elev. 157 ft)
10:26 pm PST Nov 10, 2026
11pm PST Nov 10, 2026-6pm PST Nov 17, 2026
 
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Additional Resources

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