Storm System to Move Across the Ohio Valley to the Mid-Atlantic and Northeast

Isolated severe thunderstorms will be possible on Veterans Day across parts of the lower Ohio and western Tennessee Valleys. A developing storm will bring rain and gusty winds to the Mid-Atlantic and Northeast on Thursday, with the first accumulating snow likely in the higher elevations of the central Appalachians and interior Northeast. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory until November 13, 04:00 PM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

57°F

14°C

Humidity	67%
Wind Speed	N 0 MPH
Barometer	29.95 in (1014.22 mb)
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Last update	11 Nov 07:35 PM PST

More Information:

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

Extended Forecast for

4 Miles E Saint Helena CA

Coastal Flood Advisory November 11, 07:57pm until November 13, 04:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory November 11, 07:57pm until November 13, 04:00pm
NOW until 4:00pm Fri
Coastal Flood Advisory
Tonight
Low: 45 °F
Mostly Clear
Thursday
High: 70 °F
Patchy Fog
then Mostly
Sunny
Thursday Night
Low: 48 °F
Partly Cloudy
then Chance
Rain
Friday
High: 58 °F
Rain
Friday Night
Low: 43 °F
Chance Rain
and Patchy
Fog
Saturday
High: 62 °F
Slight Chance
Rain and
Areas Fog
Saturday Night
Low: 44 °F
Patchy Fog
then Chance
Rain and
Areas Fog
Sunday
High: 58 °F
Rain

Detailed Forecast

Tonight

Mostly clear, with a low around 45. Calm wind.

Thursday

Patchy fog before 8am. Otherwise, increasing clouds, with a high near 70. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

Thursday Night

A 30 percent chance of rain after 3am. Increasing clouds, with a low around 48. South southeast wind 3 to 7 mph. Winds could gust as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday

Rain. High near 58. Southwest wind 9 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Friday Night

A 50 percent chance of rain, mainly before 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 43. Calm wind.

Saturday

A 20 percent chance of rain. Areas of fog before 11am. Otherwise, partly sunny, with a high near 62.

Saturday Night

A 30 percent chance of rain after 4am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 44.

Sunday

Rain, mainly after 10am. Cloudy, with a high near 58.

Sunday Night

Rain likely, mainly before 4am. Patchy fog. Otherwise, cloudy, with a low around 43.

Monday

A chance of rain, mainly before 10am. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 57.