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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

57°F

14°C

Humidity 87%
Wind Speed E 8 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 02 Jan 09:20 AM PST
Extended Forecast for

Napa CA

Coastal Flood Advisory January 3, 02:00pm until January 4, 02:00pm
Coastal Flood Warning until January 3, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
Coastal Flood Warning
  •  
    Coastal Flood Warning until January 3, 02:00pm

    NOW until 2:00pm Sat

    Coastal Flood Warning

  • Today

    High: 57 °F

    Chance Rain
    then Rain

  • Tonight

    Tonight: Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then rain after 4am. Low around 53. Southeast wind 7 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers

  • Saturday

    Saturday: Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 55. South wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then rain after 1am. Low around 51. South wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers

  • Sunday

    Sunday: Rain. High near 54. South wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 46. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain

  • Monday

    Monday: Rain likely. Cloudy, with a high near 52. Chance of precipitation is 70%.

    High: 52 °F

    Rain Likely

  • Monday Night

    Monday Night: A chance of rain. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain
    and Patchy
    Fog

Detailed Forecast

Today
Rain, mainly after 4pm. High near 57. South southeast wind 5 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then rain after 4am. Low around 53. Southeast wind 7 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 55. South wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 1am, then rain after 1am. Low around 51. South wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 54. South wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain. Low around 46. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain likely. Cloudy, with a high near 52. Chance of precipitation is 70%.
Monday Night
A chance of rain. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 43.
Tuesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 54.
Tuesday Night
A slight chance of rain after 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 53.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38.
Thursday
A slight chance of rain. Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
5:47 am PST Jan 2, 2026
Forecast Valid:
9am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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