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

Fire Weather Concerns and Severe Thunderstorms through the Weekend

Dry and windy conditions, and some dry thunderstorms and lightning, may support hazardous fire activity in the northern Plains, high southern Plains and the Southwest this weekend. An active severe weather pattern is forecast for portions of the central and southern High Plains into the Upper Midwest through early the part of next week. Damaging winds, large hail, and tornadoes are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

54°F

12°C

Humidity 66%
Wind Speed W 9 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 16 May 01:35 AM PDT
Extended Forecast for

Napa CA

Coastal Flood Advisory May 16, 10:00pm until May 19, 03:00am
Click here for hazard details and duration
Coastal Flood Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 53. West southwest wind around 6 mph.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Southwest wind 5 to 14 mph becoming northwest in the morning. Winds could gust as high as 18 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. West northwest wind 5 to 11 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. North wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 58. North wind 11 to 18 mph, with gusts as high as 29 mph.

    Low: 58 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 53. West southwest wind around 6 mph.
Saturday
Sunny, with a high near 80. Southwest wind 5 to 14 mph becoming northwest in the morning. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 51. West northwest wind 5 to 11 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Sunday
Sunny, with a high near 79. North wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Clear, with a low around 58. North wind 11 to 18 mph, with gusts as high as 29 mph.
Monday
Sunny, with a high near 85.
Monday Night
Clear, with a low around 53.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Clear, with a low around 54.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
1:26 am PDT May 16, 2026
Forecast Valid:
1am PDT May 16, 2026-6pm PDT May 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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