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.

Overcast

52°F

11°C

Humidity	80%
Wind Speed	SW 6 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Last update	12 Apr 09:54 AM PDT

More Information:

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

Extended Forecast for

5 Miles W Napa Co. Airport CA

Today
High: 59 °F
Showers
Tonight
Low: 40 °F
Chance
Showers then
Patchy Fog
Monday
High: 64 °F
Areas Fog
then Mostly
Sunny
Monday Night
Low: 41 °F
Mostly Clear
Tuesday
High: 65 °F
Patchy Fog
then Sunny
Tuesday Night
Low: 41 °F
Mostly Clear
Wednesday
High: 66 °F
Partly Sunny
Wednesday Night
Low: 43 °F
Partly Cloudy
Thursday
High: 68 °F
Sunny

Detailed Forecast

Today

Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm. High near 59. Southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers between 7pm and 11pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 40. West wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 30%.

Monday

Areas of fog before 10am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

Monday Night

Mostly clear, with a low around 41. West wind 3 to 8 mph.

Tuesday

Patchy fog between 8am and 10am. Otherwise, sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 41.

Wednesday

Partly sunny, with a high near 66.

Wednesday Night

Partly cloudy, with a low around 43.