Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mostly Cloudy

61°F

16°C

Humidity	72%
Wind Speed	S 11 MPH
Barometer	29.81 in (1009.48 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	11 Apr 02:20 PM PDT

More Information:

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

Extended Forecast for

4 Miles NNW Napa CA

This Afternoon
High: 59 °F
Showers
Tonight
Low: 43 °F
Showers
Sunday
High: 59 °F
Showers
Sunday Night
Low: 40 °F
Chance
Showers and
Patchy Fog
then Areas
Fog
Monday
High: 65 °F
Areas Fog
then Mostly
Sunny
Monday Night
Low: 40 °F
Patchy Fog
Tuesday
High: 68 °F
Areas Fog
then Sunny
Tuesday Night
Low: 41 °F
Clear then
Patchy Fog
Wednesday
High: 69 °F
Areas Fog
then Mostly
Sunny

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 59. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 10pm, then a chance of showers between 10pm and 11pm, then showers likely and possibly a thunderstorm after 11pm. Low around 43. South wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Showers and thunderstorms, mainly before 1pm. High near 59. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 30 percent chance of showers before 11pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 40. West southwest wind 5 to 8 mph becoming calm in the evening.

Monday

Areas of fog before 9am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon.

Monday Night

Patchy fog after 11pm. Otherwise, mostly clear, with a low around 40.

Tuesday

Areas of fog before 10am. Otherwise, sunny, with a high near 68.

Tuesday Night

Patchy fog after 2am. Otherwise, mostly clear, with a low around 41.

Wednesday

Areas of fog before 9am. Otherwise, mostly sunny, with a high near 69.

Wednesday Night

Partly cloudy, with a low around 44.