Critical Fire Weather in the High Plains; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 18, 12:00 AM PST until February 18, 09:00 AM PST

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Mostly Cloudy

44°F

7°C

Humidity	82%
Wind Speed	NW 12 MPH
Barometer	29.69 in (1005.42 mb)
Dewpoint	39°F (4°C)
Visibility	10.00 mi
Wind Chill	38°F (3°C)
Last update	17 Feb 07:54 PM PST

More Information:

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

Extended Forecast for

3 Miles SW Napa CA

Cold Weather Advisory February 18, 12:00am until February 18, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Tonight
Low: 33 °F
Chance Rain
and Patchy
Fog
Wednesday
High: 51 °F
Chance Rain
Wednesday Night
Low: 38 °F
Rain
Thursday
High: 49 °F
Rain then
Chance Rain
Thursday Night
Low: 30 °F
Slight Chance
Rain then
Frost and
Patchy Fog
Friday
High: 51 °F
Slight Chance
Rain
Friday Night
Low: 34 °F
Chance Rain
and Patchy
Fog
Saturday
High: 53 °F
Chance Rain
Saturday Night
Low: 44 °F
Rain Likely

Detailed Forecast

Tonight

A chance of rain before 2am, then a slight chance of rain after 3am. Patchy fog before 2am, then patchy fog after 4am. Patchy frost between 2am and 3am. Otherwise, partly cloudy, with a low around 33. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

A 30 percent chance of rain between 10am and 4pm. Partly sunny, with a high near 51. Light west southwest wind increasing to 5 to 10 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

Rain, mainly after 9pm. Low around 38. Southwest wind 5 to 7 mph becoming light and variable. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain, mainly before 10am. High near 49. Northwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

A 20 percent chance of rain before 10pm. Patchy fog after 2am. Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 30. West northwest wind 5 to 7 mph becoming calm after midnight.

Friday

A slight chance of rain between 10am and 4pm. Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 51. Chance of precipitation is 20%.

Friday Night

A 30 percent chance of rain, mainly between 10pm and 4am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 34.

Saturday

A chance of rain, mainly after 10am. Mostly cloudy, with a high near 53.

Saturday Night

Rain likely, mainly after 10pm. Mostly cloudy, with a low around 44.

Sunday

Rain. Cloudy, with a high near 57.

Sunday Night

Rain. Cloudy, with a low around 49.

Monday

Rain. Cloudy, with a high near 59.