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 critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Extreme Cold Warning in effect from February 20, 01:00 AM PST until February 20, 09:00 AM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

32°F

0°C

Humidity	100%
Wind Speed	N 4 MPH
Barometer	30.01 in (1016.26 mb)
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Wind Chill	28°F (-2°C)
Last update	20 Feb 03:54 AM PST

More Information:

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

Extended Forecast for

4 Miles N Sonoma CA

Extreme Cold Warning until February 20, 09:00am

Click here for hazard details and duration

Extreme Cold Warning

Extreme Cold Warning until February 20, 09:00am
NOW until 9:00am Fri
Extreme Cold Warning
Overnight
Low: 34 °F
Mostly Clear
Friday
High: 44 °F
Partly Sunny
Friday Night
Low: 37 °F
Partly Cloudy
Saturday
High: 48 °F
Partly Sunny
then Slight
Chance Rain
Saturday Night
Low: 48 °F
Rain Likely
Sunday
High: 55 °F
Rain Likely
Sunday Night
Low: 51 °F
Chance Rain
Monday
High: 57 °F
Rain Likely

Detailed Forecast

Overnight

Mostly clear, with a low around 34. North northwest wind around 6 mph.

Friday

Partly sunny, with a high near 44. Northeast wind around 6 mph becoming south in the afternoon.

Friday Night

Partly cloudy, with a low around 37. East southeast wind around 7 mph.

Saturday

A 10 percent chance of rain after 4pm. Partly sunny, with a high near 48. South southeast wind 9 to 11 mph, with gusts as high as 22 mph.

Saturday Night

Rain likely, mainly after 4am. Mostly cloudy, with a low around 48. Southeast wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 55. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 51.

Monday

Rain likely, mainly after 4pm. Mostly cloudy, with a high near 57.

Monday Night

Rain. Cloudy, with a low around 53.

Tuesday

Rain. Cloudy, with a high near 56.

Tuesday Night

Rain likely. Cloudy, with a low around 52.

Wednesday

Rain likely. Mostly cloudy, with a high near 56.