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 in effect from February 21, 01:00 AM PST 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

48°F

9°C

Humidity	66%
Wind Speed	E 4 MPH
Barometer	30.11 in (1019.64 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Wind Chill	47°F (8°C)
Last update	20 Feb 11:35 AM PST

More Information:

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

Extended Forecast for

Sonoma CA

Cold Weather Advisory February 21, 01:00am until February 21, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Today
High: 50 °F
Partly Sunny
Tonight
Low: 34 °F
Patchy Fog
then Patchy
Frost and
Patchy Fog
Saturday
High: 55 °F
Partly Sunny
then Slight
Chance Rain
Saturday Night
Low: 44 °F
Chance Rain
Sunday
High: 61 °F
Chance Rain
Sunday Night
Low: 45 °F
Chance Rain
and Patchy
Fog
Monday
High: 63 °F
Chance Rain
and Areas Fog
Monday Night
Low: 51 °F
Rain
Tuesday
High: 59 °F
Rain

Detailed Forecast

Today

Partly sunny, with a high near 50. Light south southeast wind.

Tonight

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

Saturday

A slight chance of rain between 4pm and 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 55. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Saturday Night

A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 44. Southeast wind around 8 mph, with gusts as high as 18 mph.

Sunday

A 50 percent chance of rain. Mostly cloudy, with a high near 61. South wind 5 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 30 percent chance of rain, mainly before 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 45.

Monday

A 30 percent chance of rain, mainly after 4pm. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 63.

Monday Night

Rain, mainly after 10pm. Cloudy, with a low around 51.

Tuesday

Rain. Cloudy, with a high near 59.

Tuesday Night

Rain likely, mainly before 10pm. Patchy fog after 10pm. Otherwise, cloudy, with a low around 49.

Wednesday

A chance of rain. Areas of fog. Otherwise, mostly cloudy, with a high near 62.