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.

Partly Cloudy

54°F

12°C

Humidity	93%
Wind Speed	SE 5 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	11 Apr 07:20 AM PDT

More Information:

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

Extended Forecast for

7 Miles WSW Napa Co. Airport CA

Today
High: 61 °F
Chance
Showers then
Showers
Tonight
Low: 47 °F
Showers
Sunday
High: 59 °F
Showers
Sunday Night
Low: 43 °F
Chance Rain
then Patchy
Fog
Monday
High: 63 °F
Patchy Fog
then Mostly
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 66 °F
Patchy Fog
then Sunny
Tuesday Night
Low: 43 °F
Mostly Clear
Wednesday
High: 66 °F
Mostly Sunny

Detailed Forecast

Today

A chance of rain and thunderstorms, then showers and possibly a thunderstorm after noon. High near 61. South wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 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 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers likely and possibly a thunderstorm after 11pm. Low around 47. South southwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Showers and possibly a thunderstorm before 2pm, then rain after 2pm. High near 59. Southwest wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 30 percent chance of rain before 11pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 43. West southwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Patchy fog before 9am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

Monday Night

Mostly clear, with a low around 42.

Tuesday

Patchy fog between 8am and 10am. Otherwise, sunny, with a high near 66.

Tuesday Night

Mostly clear, with a low around 43.

Wednesday

Mostly sunny, with a high near 66.

Wednesday Night

Partly cloudy, with a low around 44.