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

54°F

12°C

Humidity	81%
Wind Speed	SSW 11 MPH
Barometer	29.84 in (1010.5 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	12 Apr 09:20 AM PDT

More Information:

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

Extended Forecast for

2 Miles NNW Napa CA

Today
High: 58 °F
Showers
Tonight
Low: 40 °F
Chance
Showers and
Patchy Fog
then Areas
Fog
Monday
High: 65 °F
Areas Fog
then Mostly
Sunny
Monday Night
Low: 41 °F
Mostly Clear
then Patchy
Fog
Tuesday
High: 66 °F
Areas Fog
then Sunny
Tuesday Night
Low: 41 °F
Mostly Clear
then Patchy
Fog
Wednesday
High: 67 °F
Patchy Fog
then Partly
Sunny
Wednesday Night
Low: 44 °F
Partly Cloudy
Thursday
High: 68 °F
Sunny

Detailed Forecast

Today

Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 58. South southwest wind 7 to 10 mph, with gusts as high as 18 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 30 percent chance of showers, mainly between 10pm and 11pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 40. West southwest wind around 6 mph becoming calm in the evening.

Monday

Areas of fog before 10am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming west southwest around 6 mph in the afternoon.

Monday Night

Patchy fog after 2am. Otherwise, mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.

Tuesday

Areas of fog before 10am. Otherwise, sunny, with a high near 66. Calm wind becoming southwest around 6 mph in the afternoon.

Tuesday Night

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

Wednesday

Patchy fog before 9am. Otherwise, partly sunny, with a high near 67.

Wednesday Night

Partly cloudy, with a low around 44.