Extremely Critical Fire Weather in the Central Plains; Active Pattern in the West

Gusty to high winds and low relative humidity will bring critical to extremely critical fire weather conditions to the central and southern Plains today into Wednesday. Use caution with any potential ignition sources. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain and heavy mountain snow. 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.

light rain,mist

46°F

8°C

Humidity	85%
Wind Speed	W 8 MPH
Barometer	29.68 in (1005.08 mb)
Dewpoint	42°F (6°C)
Visibility	2.50 mi
Wind Chill	42°F (6°C)
Last update	17 Feb 02:54 PM PST

More Information:

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

Extended Forecast for

4 Miles N Sonoma CA

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

Click here for hazard details and duration

Cold Weather Advisory

This Afternoon
High: 42 °F
Showers
Tonight
Low: 34 °F
Chance
Rain/Snow
then Chance
Snow
Wednesday
High: 44 °F
Chance
Rain/Snow
then Chance
Rain
Wednesday Night
Low: 39 °F
Rain
Thursday
High: 43 °F
Rain/Snow
then Chance
Rain/Snow
Thursday Night
Low: 34 °F
Slight Chance
Rain/Snow
then Mostly
Clear
Friday
High: 45 °F
Chance
Rain/Snow
Friday Night
Low: 38 °F
Chance Rain
Saturday
High: 50 °F
Rain Likely

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm before 4pm, then rain likely and possibly a thunderstorm between 4pm and 5pm, then a chance of rain and thunderstorms after 5pm. High near 42. West southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of rain and snow before 2am, then a slight chance of snow after 3am. Areas of frost between 2am and 3am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 34. West northwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

Wednesday

A chance of rain and snow before noon, then a chance of rain between noon and 4pm. Partly sunny, with a high near 44. Light west wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain, mainly after 9pm. Low around 39. Southwest wind around 9 mph becoming southeast after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday

Rain and snow before 10am, then a chance of snow between 10am and 1pm, then a chance of rain and snow after 1pm. High near 43. Northwest wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

A slight chance of rain and snow before 10pm. Mostly clear, with a low around 34. Chance of precipitation is 20%.

Friday

A chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Mostly sunny, with a high near 45. Chance of precipitation is 30%. Little or no snow accumulation expected.

Friday Night

A chance of rain, mainly between 10pm and 4am. Mostly cloudy, with a low around 38.

Saturday

Rain likely, mainly after 4pm. Partly sunny, with a high near 50.

Saturday Night

Rain. Mostly cloudy, with a low around 47.

Sunday

Rain. Cloudy, with a high near 55.

Sunday Night

Rain. Cloudy, with a low around 52.

Monday

Rain. Cloudy, with a high near 54.