• Today

    Sep 1

    86°Lo 57°

    Plenty of sunshine

    Excellent for running
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
  • Tue

    Sep 2

    77°Lo 56°

    Low clouds, then sunshine

    Excellent for running
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      14 mph
    more
  • Wed

    Sep 3

    79°Lo 55°

    Low clouds followed by sun

    Excellent for running
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      11 mph
    more
  • Thu

    Sep 4

    78°Lo 54°

    Partly sunny and cool

    Excellent for running
    • Precip
      2%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
  • Fri

    Sep 5

    78°Lo 52°

    Mostly sunny and cool

    Excellent for running
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
9pm
10pm 11pm Tue
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
Clear
Clear
Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 67° 65° 63° 62° 61° 61° 60° 59°
RealFeel® 62° 62° 60° 59° 58° 58° 57° 57°
Humidity 68% 75% 80% 80% 82% 82% 83% 84%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
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0%
 
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0%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 6 SW 5 SW 5 SW 5 SW 5 SW 5 SW 5 WSW 4 WSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 0% 0% 0% 10% 10% 10% 10% 10%
Dew Point 56° 57° 56° 55° 55° 55° 54° 55°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2013
High 86° 86° N/A 75°
Low 57° 52° N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:38 AM with 13:01 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:24 PM with 10:25 of moolight, then sets at 11:49 PM

Top Story

Napa Weather Report

San Francisco: Bright, Sunny for First Week of September

September 1, 2014; 9:25 AM ET

San Francisco will see abundant sunshine through at least Thursday. more >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.