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.

Rain

55°F

13°C

Humidity 87%
Wind Speed E 11 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 02 Jan 05:35 PM PST
Extended Forecast for

Napa CA

Coastal Flood Advisory January 3, 02:00pm until January 4, 02:00pm
Coastal Flood Warning January 2, 05:47pm until January 3, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
Coastal Flood Warning
  •  
    Coastal Flood Warning January 2, 05:47pm until January 3, 02:00pm

    NOW until 2:00pm Sat

    Coastal Flood Warning

  • This Afternoon

    High: 57 °F

    Rain

  • Tonight

    Tonight: Rain before 10pm, then showers and possibly a thunderstorm after 10pm. Steady temperature around 55. South wind 9 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 1pm, then rain after 1pm. High near 56. South southwest wind 9 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers

  • Saturday Night

    Saturday Night: Rain before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Low around 50. South wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: Rain. High near 54. Southwest wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain Likely

  • Monday

    Monday: Rain. High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Rain

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain Likely
    and Patchy
    Fog

Detailed Forecast

This Afternoon
Rain. High near 57. Southeast wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain before 10pm, then showers and possibly a thunderstorm after 10pm. Steady temperature around 55. South wind 9 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and possibly a thunderstorm before 1pm, then rain after 1pm. High near 56. South southwest wind 9 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Low around 50. South wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 54. Southwest wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain. High near 52. Chance of precipitation is 80%.
Monday Night
Rain likely, mainly before 10pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 46.
Tuesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 55.
Tuesday Night
A slight chance of rain after 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 53.
Wednesday Night
A chance of rain. Partly cloudy, with a low around 38.
Thursday
Sunny, with a high near 53.
Thursday Night
Patchy frost. Otherwise, mostly clear, with a low around 35.
Friday
Areas of frost. Otherwise, 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:
12:26 pm PST Jan 2, 2026
Forecast Valid:
5pm PST Jan 2, 2026-6pm PST Jan 9, 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