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Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

52°F

11°C

Humidity 87%
Wind Speed ESE 3 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 15 Feb 03:15 AM PST
Extended Forecast for

Napa Co. Airport CA

Coastal Flood Advisory February 15, 07:00am until February 17, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory

  • Overnight

    Overnight: A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 49. East southeast wind around 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Chance Rain

  • Sunday

    Sunday: Rain, mainly after 8am. High near 58. South wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Rain Likely
    then Rain

  • Sunday Night

    Sunday Night: Rain and possibly a thunderstorm. Low around 46. South southwest wind 6 to 9 mph becoming east in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Rain

  • Washington's Birthday

    Washington's Birthday: Rain. High near 52. East northeast wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 52 °F

    Rain

  • Monday Night

    Monday Night: Rain, mainly after 4am. Low around 40. West wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Tuesday

    Tuesday: Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 50. Breezy. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 50 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain, mainly before 10pm. Low around 36. Chance of precipitation is 80%.

    Low: 36 °F

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 51.

    High: 51 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Overnight
A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 49. East southeast wind around 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly after 8am. High near 58. South wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain and possibly a thunderstorm. Low around 46. South southwest wind 6 to 9 mph becoming east in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Washington's Birthday
Rain. High near 52. East northeast wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
Rain, mainly after 4am. Low around 40. West wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 50. Breezy. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain, mainly before 10pm. Low around 36. Chance of precipitation is 80%.
Wednesday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 51.
Wednesday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 38.
Thursday
Rain likely, mainly before 10am. Partly sunny, with a high near 51.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 37.
Friday
A chance of rain. Partly sunny, with a high near 52.
Friday Night
A chance of rain. Mostly cloudy, with a low around 39.
Saturday
A chance of rain. Partly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napa Co. Airport CA
 38.2°N 122.29°W (Elev. 20 ft)
Last Update:
3:03 am PST Feb 15, 2026
Forecast Valid:
3am PST Feb 15, 2026-6pm PST Feb 21, 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