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

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on 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.

Mist

42°F

6°C

Humidity	100%
Wind Speed	E 16 MPH
Barometer	30.15 in (1021.0 mb)
Dewpoint	42°F (6°C)
Visibility	3.00 mi
Wind Chill	34°F (1°C)
Last update	30 Dec 10:21 PM PST

More Information:

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

Extended Forecast for

Napa CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Tonight
Low: 44 °F
Cloudy
Wednesday
High: 52 °F
Chance Rain
Wednesday Night
Low: 48 °F
Rain
New Year's Day
High: 55 °F
Rain
Thursday Night
Low: 52 °F
Rain
Friday
High: 56 °F
Rain
Friday Night
Low: 48 °F
Rain
Saturday
High: 54 °F
Rain
Saturday Night
Low: 45 °F
Rain Likely

Detailed Forecast

Tonight

Cloudy, with a low around 44. Northeast wind around 6 mph.

Wednesday

A 50 percent chance of rain after 10am. Cloudy, with a high near 52. Calm wind becoming east 5 to 9 mph in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 48. East wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. High near 55. East wind around 7 mph becoming south in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain. Low around 52. South southeast wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Rain. High near 56. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night

Rain. Low around 48. Chance of precipitation is 90%.

Saturday

Rain. Mostly cloudy, with a high near 54.

Saturday Night

Rain likely. Cloudy, with a low around 45.

Sunday

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

Sunday Night

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