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

Tracking Late Season Winter Storms

A moderate atmospheric river will continue to bring heavy snow over the Olympics, northern Cascades and northern Rockies Friday while heavy rain may bring flooding to coastal Oregon and Washington. A winter storm will continue to push across the Great Lakes and Northeast U.S. Friday and Saturday with areas of heavy snow and high winds. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

63°F

17°C

Humidity 59%
Wind Speed SSE 4 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 12 Mar 06:55 PM PDT
Extended Forecast for

3 Miles N Hercules CA

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Southwest wind 5 to 7 mph.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 51. West southwest wind around 8 mph.

    Low: 51 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 77. West northwest wind around 7 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. West wind 6 to 8 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. Southwest wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 74. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 51. West southwest wind around 8 mph.
Saturday
Sunny, with a high near 77. West northwest wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 54. West wind 6 to 8 mph.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Sunny, with a high near 86.
Monday Night
Clear, with a low around 58.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Clear, with a low around 58.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Hercules CA
 38.05°N 122.25°W (Elev. 56 ft)
Last Update:
1:25 pm PDT Mar 12, 2026
Forecast Valid:
7pm PDT Mar 12, 2026-6pm PDT Mar 19, 2026
 
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Additional Resources

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Chance of Precipitation