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

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	92%
Wind Speed	NNE 4 MPH
Barometer	30.05 in (1017.61 mb)
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Wind Chill	28°F (-2°C)
Last update	20 Feb 06:35 AM PST

More Information:

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

Extended Forecast for

5 Miles SSE Sonoma CA

Extreme Cold Warning until February 20, 09:00am

Click here for hazard details and duration

...

Extreme Cold Warning until February 20, 09:00am
NOW until 9:00am Fri
Extreme Cold Warning
Today
High: 50 °F
Frost and
Patchy Fog
then Partly
Sunny
Tonight
Low: 34 °F
Patchy Fog
then Patchy
Frost and
Patchy Fog
Saturday
High: 56 °F
Partly Sunny
then Slight
Chance Rain
Saturday Night
Low: 46 °F
Rain Likely
Sunday
High: 60 °F
Rain Likely
Sunday Night
Low: 49 °F
Chance Rain
Monday
High: 61 °F
Chance Rain
Monday Night
Low: 52 °F
Rain

Detailed Forecast

Today

Patchy fog before 8am. Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 50. Calm wind becoming southeast around 6 mph in the afternoon.

Tonight

Patchy fog between 10pm and 1am. Patchy frost after midnight. Otherwise, increasing clouds, with a low around 34. Calm wind.

Saturday

A 10 percent chance of rain after 4pm. Partly sunny, with a high near 56. Light east wind becoming southeast 5 to 10 mph in the morning.

Saturday Night

Rain likely, mainly after 4am. Mostly cloudy, with a low around 46. Southeast wind 8 to 10 mph, with gusts as high as 21 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 60. South southeast wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 49. New precipitation amounts of less than a tenth of an inch possible.

Monday

A 40 percent chance of rain. Mostly cloudy, with a high near 61.

Monday Night

Rain, mainly after 10pm. Cloudy, with a low around 52.

Tuesday

Rain. Cloudy, with a high near 59.

Tuesday Night

Rain likely. Cloudy, with a low around 47.

Wednesday

A chance of rain. Mostly cloudy, with a high near 61.