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.

Clear

49°F

9°C

Humidity	89%
Wind Speed	SW 4 MPH
Barometer	29.77 in (1008.13 mb)
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Wind Chill	48°F (9°C)
Last update	12 Apr 03:54 AM PDT

More Information:

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

Extended Forecast for

2 Miles NW Napa Co. Airport CA

Overnight
Low: 46 °F
Chance
T-storms
Sunday
High: 59 °F
Showers
Sunday Night
Low: 40 °F
Slight Chance
Showers and
Patchy Fog
then Patchy
Fog
Monday
High: 64 °F
Areas Fog
then Sunny
Monday Night
Low: 41 °F
Mostly Clear
then Patchy
Fog
Tuesday
High: 66 °F
Patchy Fog
then Sunny
Tuesday Night
Low: 42 °F
Mostly Clear
Wednesday
High: 67 °F
Mostly Sunny
Wednesday Night
Low: 45 °F
Partly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Southwest wind around 8 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 59. Southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 20 percent chance of showers before 7pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 40. West southwest wind 5 to 8 mph becoming calm in the evening.

Monday

Areas of fog before 10am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming west around 6 mph in the afternoon.

Monday Night

Patchy fog after 5am. Otherwise, mostly clear, with a low around 41. West wind 5 to 8 mph becoming calm in the evening.

Tuesday

Patchy fog before 10am. Otherwise, sunny, with a high near 66.

Tuesday Night

Mostly clear, with a low around 42.

Wednesday

Mostly sunny, with a high near 67.

Wednesday Night

Partly cloudy, with a low around 45.