• Today

    Aug 1

    80°Lo 59°

    Clouds yielding to sun

    Fair for stargazing
    • Cloud
      Cover
      62%
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Sun

    Aug 2

    77°Lo 56°

    Low clouds, then sunshine

    Fair for stargazing
    • Cloud
      Cover
      23%
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Mon

    Aug 3

    75°Lo 55°

    Clouds, then sun

    Fair for stargazing
    • Cloud
      Cover
      45%
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Tue

    Aug 4

    75°Lo 53°

    Low clouds, then sun

    Very Good for stargazing
    • Cloud
      Cover
      25%
    • Precip
      2%
    • Hours of Precip
      0
  • Wed

    Aug 5

    78°Lo 53°

    Low clouds, then some sun

    Very Good for stargazing
    • Cloud
      Cover
      3%
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
Hi 75° RealFeel® 77° Precipitation 3%

Day

N

E

S

W

  • SW 13 mph
  • Gusts: 20 mph

Low clouds giving way to sunshine

  • Max UV Index: 7 (High)
  • Thunderstorms: 3%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 53° RealFeel® 51° Precipitation 2%

Night

N

E

S

W

  • WSW 8 mph
  • Gusts: 16 mph

Mostly clear

  • Max UV Index: N/A
  • Thunderstorms: 3%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 4

more Historical Weather Data >
  Today Normal Record 8/4/2014
High 75° 82° 106° (1998) 75°
Low 53° 55° 46° (1949) 57°

Solunar Information for Napa, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:13 AM with 14:03 of sunlight, then sets at 8:16 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:08 PM with 13:11 of moolight, then sets at 12:19 PM

Fri, Aug 7
Last
Fri, Aug 14
New
Sat, Aug 22
First
Sat, Aug 29
Full

Napa Weather Report

San Francisco: Dry Weather Continues in the Bay Area

August 1, 2015; 4:06 PM ET

The only fly in the ointment in the forecast will be low morning clouds which may cause travel delays at San Francisco International Airport. more >

Curiosity Tastes Mars

Dec 14, 2012; 5:00 AM ET The Mars Science Laboratory Rover 'Curiosity' continues its sampling and analyzing of the Martian surface.

Tue. Stargazing