• Today

    Apr 18

    62°Lo 48°

    Sunshine and some clouds

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Sat

    Apr 19

    62°Lo 48°

    Mostly sunny

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sun

    Apr 20

    65°Lo 51°

    Clouds giving way to some sun

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Mon

    Apr 21

    62°Lo 51°

    Low clouds break for some sun

    Low indoor dust & dander levels
    • Precip
      13%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      70%
    more
  • Tue

    Apr 22

    59°Lo 49°

    Mainly cloudy, a shower; cool

    Low indoor dust & dander levels
    • Precip
      55%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      76%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
3pm
4pm 5pm 6pm 7pm 8pm 9pm 10pm
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Cloudy
Mostly Clear
Mostly Clear
Temp (°F) 62° 62° 61° 59° 58° 55° 53° 53°
RealFeel® 64° 63° 59° 55° 52° 49° 46° 46°
Humidity 58% 57% 61% 66% 71% 78% 81% 81%
   
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
Ice
 
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  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Wind (mph) 9 WSW 9 W 10 W 10 W 10 W 9 W 9 W 9 W
UV Index 5 4 2 1 0 0 0 0
Cloud Cover 48% 48% 48% 45% 40% 32% 26% 26%
Dew Point 47° 47° 48° 48° 48° 48° 47° 47°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 62° 63° 83° (1914) 70°
Low 48° 49° 42° (1955) 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 13:17 of sunlight, then sets at 7:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:37 PM with 10:19 of moolight, then sets at 9:56 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 >

Is it a Cold or the Flu?

Apr 7, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps