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	82%
Wind Speed	S 3 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	10 Apr 11:30 AM PDT

More Information:

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

Extended Forecast for

3 Miles SSE Lake Berryessa CA

Today
High: 64 °F
Showers
Tonight
Low: 50 °F
Rain Likely
Saturday
High: 58 °F
Chance
Showers then
Showers
Saturday Night
Low: 44 °F
Showers
Sunday
High: 56 °F
Showers
Sunday Night
Low: 41 °F
Chance Rain
then Patchy
Fog
Monday
High: 63 °F
Areas Fog
then Mostly
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 67 °F
Patchy Fog
then Sunny

Detailed Forecast

Today

Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 64. South southwest wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Rain and thunderstorms likely before 11pm, then a chance of rain. Mostly cloudy, with a low around 50. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Rain and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 58. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers and possibly a thunderstorm before 8pm, then rain between 8pm and 11pm, then showers and possibly a thunderstorm after 11pm. Low around 44. South wind 5 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 56. South southwest wind 5 to 9 mph, with gusts as high as 18 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 3am. Otherwise, partly cloudy, with a low around 41. New precipitation amounts of less than a tenth of an inch possible.

Monday

Areas of fog before 8am. Otherwise, mostly sunny, with a high near 63.

Monday Night

Mostly clear, with a low around 42.

Tuesday

Patchy fog before 8am. Otherwise, sunny, with a high near 67.

Tuesday Night

Patchy fog after 5am. Otherwise, mostly clear, with a low around 42.

Wednesday

Sunny, with a high near 69.

Wednesday Night

Partly cloudy, with a low around 45.