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	100%
Wind Speed	N 0 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	11 Apr 05:20 AM PDT

More Information:

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

Extended Forecast for

7 Miles SSE Lake Berryessa CA

Today
High: 56 °F
Showers
Tonight
Low: 44 °F
Showers
Sunday
High: 55 °F
Showers
Sunday Night
Low: 40 °F
Chance Rain
then Patchy
Fog
Monday
High: 61 °F
Areas Fog
then Mostly
Sunny
Monday Night
Low: 41 °F
Mostly Clear
Tuesday
High: 65 °F
Sunny
Tuesday Night
Low: 41 °F
Mostly Clear
Wednesday
High: 66 °F
Mostly Sunny

Detailed Forecast

Today

A chance of rain, then showers and possibly a thunderstorm after 11am. High near 56. South southwest wind 7 to 16 mph, with gusts as high as 30 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 thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 44. South southwest wind 7 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Sunday

Showers and possibly a thunderstorm. High near 55. South southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 40 percent chance of rain before 11pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 40. West southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Areas of fog before 9am. Otherwise, mostly sunny, with a high near 61. Light west wind.

Monday Night

Mostly clear, with a low around 41.

Tuesday

Sunny, with a high near 65.

Tuesday Night

Mostly clear, with a low around 41.

Wednesday

Mostly sunny, with a high near 66.

Wednesday Night

Partly cloudy, with a low around 44.