• Today

    Apr 21

    62°Lo 53°

    Mostly cloudy and breezy

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Wed

    Apr 22

    68°Lo 49°

    Warmer

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Thu

    Apr 23

    65°Lo 54°

    Breezy with some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Fri

    Apr 24

    64°Lo 52°

    Breezy with some sun

    Low ragweed pollen levels
    • Precip
      6%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      44%
    more
  • Sat

    Apr 25

    67°Lo 56°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      2%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      28%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 55° 55° 55° 54° 53° 53° 53° 53°
RealFeel® 51° 51° 50° 50° 49° 49° 50° 52°
Humidity 80% 81% 81% 82% 83% 84% 84% 84%
   
  12am 1am 2am 3am 4am 5am 6am 7am
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%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 8 WSW 8 WSW 9 WSW 8 WSW 8 WSW 8 WSW 6 WSW 6 SW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 93% 97% 99% 97% 94% 90% 87% 87%
Dew Point 49° 49° 49° 48° 48° 48° 48° 48°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 22

more Historical Weather Data >
  Today Normal Record 4/22/2014
High 68° 65° 83° (2013) 63°
Low 49° 50° 42° (1963) 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:25 AM with 13:26 of sunlight, then sets at 7:51 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:43 AM with 14:27 of moolight, then sets at 12:10 AM

San Bruno Weather Report

San Francisco: Clouds, Showers to Linger Ahead of Weekend

April 21, 2015; 6:20 AM ET

While cloudy conditions can be expected over the San Francisco area for the next several days, showers will not make a return until the middle of the week. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps