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

55°F

13°C

Humidity	93%
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 01:35 AM PDT

More Information:

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

Extended Forecast for

4 Miles NNW Napa CA

Overnight
Low: 53 °F
Chance Rain
Saturday
High: 60 °F
Showers
Likely then
Showers
Saturday Night
Low: 44 °F
Showers
Sunday
High: 59 °F
Showers
Sunday Night
Low: 40 °F
Chance Rain
and Patchy
Fog then
Areas Fog
Monday
High: 65 °F
Areas Fog
then Mostly
Sunny
Monday Night
Low: 40 °F
Patchy Fog
Tuesday
High: 68 °F
Areas Fog
then Sunny
Tuesday Night
Low: 40 °F
Clear then
Patchy Fog

Detailed Forecast

Overnight

A 30 percent chance of rain, mainly before 3am. Mostly cloudy, with a steady temperature around 53. Light south wind. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A chance of rain, then showers and possibly a thunderstorm after 11am. High near 60. South wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Rain and possibly a thunderstorm before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 44. South wind 5 to 11 mph, with gusts as high as 23 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. High near 59. Southwest wind 7 to 9 mph, with gusts as high as 18 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 11pm. Otherwise, partly cloudy, with a low around 40. West southwest wind 5 to 8 mph becoming calm in the evening. 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 65.

Monday Night

Patchy fog after 11pm. Otherwise, mostly clear, with a low around 40.

Tuesday

Areas of fog before 9am. Otherwise, sunny, with a high near 68.

Tuesday Night

Patchy fog after 2am. Otherwise, mostly clear, with a low around 40.

Wednesday

Areas of fog before 9am. Otherwise, mostly sunny, with a high near 69.

Wednesday Night

Partly cloudy, with a low around 42.