Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. 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.

Rain

45°F

7°C

Humidity	93%
Wind Speed	E 11 MPH
Barometer	29.8 in (1009.14 mb)
Dewpoint	43°F (6°C)
Visibility	9.00 mi
Wind Chill	39°F (4°C)
Last update	19 Feb 02:15 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 February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Extreme Cold Warning

Overnight
Low: 37 °F
Rain
Thursday
High: 44 °F
Rain/Snow
then Slight
Chance Rain
Thursday Night
Low: 34 °F
Mostly Clear
Friday
High: 44 °F
Partly Sunny
Friday Night
Low: 38 °F
Partly Cloudy
Saturday
High: 50 °F
Slight Chance
Rain
Saturday Night
Low: 47 °F
Chance Rain
Sunday
High: 56 °F
Rain Likely
Sunday Night
Low: 52 °F
Rain Likely

Detailed Forecast

Overnight

Rain. Low around 37. Southeast wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain and snow before noon, then a slight chance of rain after 3pm. High near 44. West northwest wind 16 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday Night

Mostly clear, with a low around 34. West northwest wind 7 to 13 mph, with gusts as high as 23 mph.

Friday

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

Friday Night

Partly cloudy, with a low around 38. East northeast wind around 6 mph.

Saturday

A 20 percent chance of rain after 10am. Partly sunny, with a high near 50.

Saturday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 47.

Sunday

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