Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Cold Weather Advisory until February 21, 09:00 AM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

36°F

2°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	30.12 in (1019.98 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Last update	21 Feb 02:54 AM PST

More Information:

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

Extended Forecast for

3 Miles SSE Lake Berryessa CA

Cold Weather Advisory February 21, 03:11am until February 21, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Cold Weather Advisory February 21, 03:11am until February 21, 09:00am
NOW until 9:00am Sat
Cold Weather Advisory
Overnight
Low: 34 °F
Areas Frost
Saturday
High: 54 °F
Patchy Fog
then Mostly
Sunny
Saturday Night
Low: 42 °F
Mostly Clear
then Chance
Rain
Sunday
High: 60 °F
Chance Rain
Sunday Night
Low: 45 °F
Mostly Cloudy
then Patchy
Fog
Monday
High: 63 °F
Patchy Fog
then Chance
Rain
Monday Night
Low: 51 °F
Rain Likely
Tuesday
High: 58 °F
Rain

Detailed Forecast

Overnight

Areas of frost. Otherwise, mostly cloudy, with a low around 34. Calm wind.

Saturday

Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 54. Calm wind becoming south southeast 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

Saturday Night

A 30 percent chance of rain after 4am. Increasing clouds, with a low around 42. South southeast wind 3 to 6 mph.

Sunday

A 30 percent chance of rain, mainly before 10am. Partly sunny, with a high near 60. Calm wind becoming south around 6 mph in the afternoon.

Sunday Night

Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 45. Calm wind.

Monday

A 30 percent chance of rain after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 63.

Monday Night

Rain likely, mainly after 10pm. Cloudy, with a low around 51. Chance of precipitation is 70%.

Tuesday

Rain. Cloudy, with a high near 58.