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	81%
Wind Speed	NNE 9 MPH
Barometer	29.66 in (1004.4 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Wind Chill	38°F (3°C)
Last update	19 Feb 06:35 AM PST

More Information:

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

Extended Forecast for

7 Miles SSE Lake Berryessa 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: 48 °F
Rain/Snow
then Chance
Rain
Tonight
Low: 30 °F
Frost
Friday
High: 47 °F
Frost then
Partly Sunny
Friday Night
Low: 33 °F
Patchy Frost
Saturday
High: 51 °F
Partly Sunny
Saturday Night
Low: 43 °F
Chance Rain
Sunday
High: 56 °F
Rain Likely
Sunday Night
Low: 49 °F
Rain Likely
Monday
High: 59 °F
Rain Likely

Detailed Forecast

Today

Rain and snow before noon, then a chance of rain between noon and 1pm. High near 48. South wind 8 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tonight

Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 30. West northwest wind around 6 mph becoming calm in the evening.

Friday

Widespread frost, mainly before 9am. Otherwise, mostly sunny, with a high near 47. Light east wind.

Friday Night

Patchy frost after 10pm. Otherwise, partly cloudy, with a low around 33. Calm wind.

Saturday

Partly sunny, with a high near 51. Calm wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

Saturday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 43. New precipitation amounts of less than a tenth of an inch possible.

Sunday

Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.