Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

55°F

13°C

Humidity 89%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Nov 06:54 PM PST
Extended Forecast for

3 Miles N Hercules CA

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Light east wind.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after 10am.  Mostly cloudy, with a high near 63. Calm wind becoming west southwest around 6 mph in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 50 percent chance of rain.  Cloudy, with a low around 55. South southwest wind 7 to 9 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, then showers and possibly a thunderstorm after 4pm.  High near 60. South southwest wind around 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm.  Low around 52. South wind around 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers

  • Monday

    Monday: A 50 percent chance of rain, mainly before 4pm.  Partly sunny, with a high near 57. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Chance Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before 10pm.  Partly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. Light east wind.
Saturday
A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 63. Calm wind becoming west southwest around 6 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 50 percent chance of rain. Cloudy, with a low around 55. South southwest wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely, then showers and possibly a thunderstorm after 4pm. High near 60. South southwest wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 52. South wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 50 percent chance of rain, mainly before 4pm. Partly sunny, with a high near 57. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
A slight chance of rain after 4pm. Mostly sunny, with a high near 58.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 50.
Thursday
A chance of rain. Partly sunny, with a high near 57.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 50.
Friday
A slight chance of rain. Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Hercules CA
 38.05°N 122.25°W (Elev. 56 ft)
12:26 pm PST Nov 14, 2025
7pm PST Nov 14, 2025-6pm PST Nov 21, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database