Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory in effect from September 4, 04:00 PM PDT until September 4, 09:00 PM PDT

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

72°F

22°C

Humidity	56%
Wind Speed	SSW 13 MPH
Barometer	29.94 in (1013.89 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	04 Sep 02:15 PM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Napa CA

Coastal Flood Advisory September 4, 04:00pm until September 4, 09:00pm

Click here for hazard details and duration

Coastal Flood Advisory

This Afternoon
High: 72 °F
Sunny
Tonight
Low: 51 °F
Increasing
Clouds
Saturday
High: 75 °F
Patchy Fog
then Sunny
Saturday Night
Low: 52 °F
Mostly Clear
then Patchy
Fog
Sunday
High: 74 °F
Patchy Fog
then Sunny
Sunday Night
Low: 52 °F
Mostly Clear
Labor Day
High: 81 °F
Sunny
Monday Night
Low: 57 °F
Mostly Clear
Tuesday
High: 82 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 72. West southwest wind around 9 mph.

Tonight

Increasing clouds, with a low around 51. West southwest wind 5 to 7 mph becoming calm in the evening.

Saturday

Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 75. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

Saturday Night

Patchy fog after 5am. Otherwise, increasing clouds, with a low around 52. West southwest wind 5 to 8 mph becoming calm in the evening.

Sunday

Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

Sunday Night

Mostly clear, with a low around 52.

Labor Day

Sunny, with a high near 81.

Monday Night

Mostly clear, with a low around 57.

Tuesday

Mostly sunny, with a high near 82.

Tuesday Night

A slight chance of rain after 11pm. Partly cloudy, with a low around 58.

Wednesday

A slight chance of rain. Partly sunny, with a high near 78.