• Today

    Aug 1

    80°Lo 59°

    Clouds yielding to sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Sun

    Aug 2

    77°Lo 56°

    Low clouds, then sunshine

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Mon

    Aug 3

    75°Lo 55°

    Clouds, then sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Tue

    Aug 4

    75°Lo 53°

    Low clouds, then sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Wed

    Aug 5

    78°Lo 53°

    Low clouds, then some sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 80° RealFeel® 81° Precipitation 5%

Day

N

E

S

W

  • SW 14 mph
  • Gusts: 20 mph

Increasing amounts of sun; breezy this afternoon

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 59° RealFeel® 56° Precipitation 3%

Night

N

E

S

W

  • W 12 mph
  • Gusts: 20 mph

Partly cloudy this evening; late-night low clouds

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • 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 1

more Historical Weather Data >
  Today Normal Record 8/1/2014
High 80° 82° 102° (1993) 80°
Low 59° 55° 44° (1932) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 14:07 of sunlight, then sets at 8:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:11 PM with 11:41 of moolight, then sets at 8:52 AM

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 >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Sat. Snow Day Potential