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

Gusty winds and dry conditions will continue to bring fire weather concerns to the southern Plains through Friday. Severe thunderstorms including a few tornadoes, large hail and damaging wind gusts are expected across parts of the Midwest and lower Ohio Valley today. A Pacific storm will bring low elevation rain and thunderstorms across southern California and heavy snow through the Sierra. 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.

Partly Cloudy

49°F

9°C

Humidity	70%
Wind Speed	W 17 MPH
Barometer	29.73 in (1006.77 mb)
Dewpoint	40°F (4°C)
Visibility	10.00 mi
Wind Chill	43°F (6°C)
Last update	19 Feb 09:54 AM PST

More Information:

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

Extended Forecast for

5 Miles SSW 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: 47 °F
Slight Chance
Rain
Tonight
Low: 32 °F
Frost
Friday
High: 47 °F
Frost then
Partly Sunny
Friday Night
Low: 35 °F
Patchy Frost
Saturday
High: 51 °F
Slight Chance
Rain
Saturday Night
Low: 44 °F
Chance Rain
Sunday
High: 56 °F
Rain Likely
Sunday Night
Low: 50 °F
Rain Likely
Monday
High: 59 °F
Rain Likely

Detailed Forecast

Today

A 20 percent chance of rain before 1pm. Mostly sunny, with a high near 47. West northwest wind 11 to 13 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight

Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. West northwest wind 3 to 8 mph.

Friday

Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 47. Light and variable wind becoming east northeast around 5 mph in the morning.

Friday Night

Patchy frost after 11pm. Otherwise, partly cloudy, with a low around 35. Light east northeast wind.

Saturday

A 20 percent chance of rain after 10am. Areas of frost before 8am. Otherwise, partly sunny, with a high near 51. Southeast wind 5 to 9 mph, with gusts as high as 18 mph.

Saturday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 44. 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%.

Sunday Night

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

Monday

Rain likely, mainly after 10am. Mostly cloudy, with a high near 59.

Monday Night

Rain. Cloudy, with a low around 53.

Tuesday

Rain. Cloudy, with a high near 57.