Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory in effect from December 31, 05:00 AM PST until January 4, 02:00 PM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

light rain,mist

45°F

7°C

Humidity	93%
Wind Speed	E 12 MPH
Barometer	30.07 in (1018.29 mb)
Dewpoint	43°F (6°C)
Visibility	6.00 mi
Wind Chill	39°F (4°C)
Last update	31 Dec 11:00 AM PST

More Information:

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

Extended Forecast for

Napa CA

Coastal Flood Advisory until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory until January 4, 02:00pm
NOW until 2:00pm Sun
Coastal Flood Advisory
Today
High: 51 °F
Rain Likely
Tonight
Low: 48 °F
Rain
New Year's Day
High: 56 °F
Rain
Thursday Night
Low: 51 °F
Rain
Friday
High: 56 °F
Rain
Friday Night
Low: 50 °F
Showers
Saturday
High: 55 °F
Rain
Saturday Night
Low: 47 °F
Rain

Detailed Forecast

Today

Rain likely. Cloudy, with a high near 51. East northeast wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Rain. Low around 48. Northeast wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

New Year's Day

Rain. High near 56. East northeast wind around 6 mph becoming south southeast in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain, mainly before 4am. Low around 51. Southeast wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Rain, mainly after 10am. High near 56. South wind 8 to 14 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.

Friday Night

Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then rain and possibly a thunderstorm after 4am. Low around 50. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Saturday

Rain. High near 55. Chance of precipitation is 90%.

Saturday Night

Rain. Cloudy, with a low around 47.

Sunday

Rain likely. Mostly cloudy, with a high near 53.

Sunday Night

Rain likely. Mostly cloudy, with a low around 45.

Monday

Rain likely. Mostly cloudy, with a high near 52.

Monday Night

Rain likely. Mostly cloudy, with a low around 44.