• Early AM

    Apr 18

    Lo 50°

    Low clouds

    Running Weather
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
  • Today

    Apr 18

    64°Lo 48°

    Low clouds, then some sun

    Excellent for running
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      15 mph
    more
  • Sat

    Apr 19

    62°Lo 48°

    Mostly sunny

    Excellent for running
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      18 mph
    more
  • Sun

    Apr 20

    66°Lo 50°

    Clouds giving way to some sun

    Excellent for running
    • Precip
      2%
    • Hours of Precip
      0
    • Wind
      Gust
      15 mph
  • Mon

    Apr 21

    63°Lo 52°

    Low clouds break for some sun

    Excellent for running
    • Precip
      13%
    • Hours of Precip
      3
    • Wind
      Gust
      15 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 54° 56° 59° 62° 63° 64° 66° 66°
RealFeel® 56° 59° 64° 66° 67° 69° 68° 66°
Humidity 76% 73% 69% 65% 61% 57% 53% 50%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 5 NW 5 NW 6 NW 7 WNW 8 WNW 9 WNW 10 WNW 10 WNW
UV Index 2 3 5 6 6 7 6 4
Cloud Cover 95% 95% 95% 95% 95% 26% 26% 26%
Dew Point 47° 47° 49° 50° 49° 49° 48° 47°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 66° 63° 93° (2009) 71°
Low 50° 49° 42° (2008) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 13:22 of sunlight, then sets at 7:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:33 AM with 10:23 of moolight, then sets at 10:56 AM

Top Story

San Francisco Weather Report

San Francisco: No Rain in Sight, Morning Clouds to Break for Afternoon Sunshine

April 18, 2014; 4:06 AM ET

For the remainder of the week and into the weekend, morning clouds will give way to mostly sunny skies. 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.