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

62°F

17°C

Humidity	77%
Wind Speed	SSW 16 MPH
Barometer	29.84 in (1010.5 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	10 Apr 03:54 PM PDT

More Information:

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

Extended Forecast for

4 Miles NNW Napa CA

This Afternoon
High: 65 °F
Showers
Likely
Tonight
Low: 50 °F
Rain Likely
and Patchy
Fog then
Chance Rain
and Patchy
Fog
Saturday
High: 60 °F
Chance
Showers then
Showers
Saturday Night
Low: 44 °F
Showers
Sunday
High: 58 °F
Showers
Sunday Night
Low: 41 °F
Chance Rain
and Patchy
Fog then
Areas Fog
Monday
High: 65 °F
Areas Fog
then Mostly
Sunny
Monday Night
Low: 40 °F
Mostly Clear
then Patchy
Fog
Tuesday
High: 69 °F
Areas Fog
then Sunny

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 65. South southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Rain and thunderstorms likely before 10pm, then a chance of rain. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 50. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 60. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 90%. 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 11pm, then showers and possibly a thunderstorm between 11pm and 5am, then rain after 5am. Low around 44. South wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 58. South wind 5 to 8 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 11pm. 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 9am. Otherwise, mostly sunny, with a high near 65.

Monday Night

Patchy fog after 1am. Otherwise, mostly clear, with a low around 40.

Tuesday

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

Tuesday Night

Patchy fog after 2am. Otherwise, mostly clear, with a low around 41.

Wednesday

Areas of fog. Otherwise, mostly sunny, with a high near 70.

Wednesday Night

Patchy fog. Otherwise, partly cloudy, with a low around 43.