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.

Mostly Cloudy

52°F

11°C

Humidity	57%
Wind Speed	W 18 MPH
Barometer	29.76 in (1007.79 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	19 Feb 01:20 PM PST

More Information:

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

Extended Forecast for

4 Miles NNW Napa CA

Extreme Cold Warning February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Extreme Cold Warning

This Afternoon
High: 51 °F
Slight Chance
Rain
Tonight
Low: 30 °F
Clear then
Frost and
Patchy Fog
Friday
High: 51 °F
Frost and
Patchy Fog
then Partly
Sunny
Friday Night
Low: 35 °F
Patchy Fog
then Patchy
Frost and
Patchy Fog
Saturday
High: 55 °F
Slight Chance
Rain
Saturday Night
Low: 44 °F
Chance Rain
Sunday
High: 60 °F
Rain Likely
Sunday Night
Low: 50 °F
Chance Rain
Monday
High: 63 °F
Rain Likely

Detailed Forecast

This Afternoon

A 20 percent chance of rain before 3pm. Sunny, with a high near 51. West northwest wind 11 to 13 mph, with gusts as high as 24 mph.

Tonight

Patchy fog after 3am. Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 30. West northwest wind around 6 mph becoming calm in the evening.

Friday

Patchy fog before 8am. Widespread frost before 9am. Otherwise, mostly sunny, with a high near 51. Light and variable wind.

Friday Night

Patchy fog after 10pm. Patchy frost after 1am. Otherwise, partly cloudy, with a low around 35. Calm wind.

Saturday

A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 55. Calm wind becoming southeast 5 to 7 mph in the morning.

Saturday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 44. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday

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

Sunday Night

A chance of rain. Cloudy, with a low around 50.