Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

37°F

3°C

Humidity	93%
Wind Speed	N 5 MPH
Barometer	30.24 in (1024.04 mb)
Dewpoint	36°F (2°C)
Visibility	9.00 mi
Wind Chill	33°F (1°C)
Last update	29 Dec 11:35 PM PST

More Information:

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

Extended Forecast for

2 Miles SE Napa Co. Airport CA

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

Dense Fog Advisory December 29, 11:47pm until December 30, 10:00am

Cold Weather Advisory December 30, 01:00am until December 30, 09:00am

Click here for hazard details and duration

Coastal Flood Advisory

Dense Fog Advisory

Cold Weather Advisory

Dense Fog Advisory December 29, 11:47pm until December 30, 10:00am
NOW until 10:00am Tue
Dense Fog Advisory
Tonight
Low: 36 °F
Mostly Clear
Tuesday
High: 51 °F
Increasing
Clouds
Tuesday Night
Low: 44 °F
Cloudy then
Slight Chance
Rain
Wednesday
High: 49 °F
Chance Rain
then Rain
Wednesday Night
Low: 47 °F
Rain
New Year's Day
High: 53 °F
Rain
Thursday Night
Low: 50 °F
Rain
Friday
High: 55 °F
Rain

Detailed Forecast

Tonight

Mostly clear, with a low around 36. East wind 9 to 11 mph.

Tuesday

Increasing clouds, with a high near 51. East wind 11 to 17 mph, with gusts as high as 21 mph.

Tuesday Night

A 10 percent chance of rain after 4am. Cloudy, with a low around 44. East northeast wind 6 to 14 mph.

Wednesday

Rain, mainly after 4pm. High near 49. East wind 9 to 14 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 47. East wind 9 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. High near 53. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain. Low around 50. Chance of precipitation is 80%.

Friday

Rain. Cloudy, with a high near 55.

Friday Night

Rain. Cloudy, with a low around 46.

Saturday

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