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

43°F

6°C

Humidity	86%
Wind Speed	W 14 MPH
Barometer	29.69 in (1005.42 mb)
Dewpoint	39°F (4°C)
Visibility	10.00 mi
Wind Chill	36°F (2°C)
Last update	19 Feb 07:35 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 February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Extreme Cold Warning

Today
High: 51 °F
Chance Rain
Tonight
Low: 31 °F
Clear then
Frost and
Patchy Fog
Friday
High: 51 °F
Frost and
Patchy Fog
then Partly
Sunny
Friday Night
Low: 34 °F
Patchy Fog
then Patchy
Frost and
Patchy Fog
Saturday
High: 55 °F
Slight Chance
Rain
Saturday Night
Low: 46 °F
Chance Rain
Sunday
High: 59 °F
Rain Likely
Sunday Night
Low: 50 °F
Rain Likely
Monday
High: 61 °F
Rain Likely

Detailed Forecast

Today

A 30 percent chance of rain, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 51. West northwest wind 9 to 17 mph, with gusts as high as 26 mph. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Patchy fog after 4am. Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 31. West northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.

Friday

Patchy fog before 9am. Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 51. Calm wind becoming east southeast around 5 mph in the afternoon.

Friday Night

Patchy fog between 11pm and 1am. Patchy frost after midnight. Otherwise, partly cloudy, with a low around 34. Calm wind.

Saturday

A 20 percent chance of rain after 10am. Partly sunny, with a high near 55. Light east wind becoming southeast 5 to 10 mph in the morning.

Saturday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 46. New precipitation amounts of less than a tenth of an inch possible.

Sunday

Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.

Sunday Night

Rain likely, mainly before 10pm. Cloudy, with a low around 50.

Monday

Rain likely, mainly after 10am. Mostly cloudy, with a high near 61.