• Tonight

    Apr 21

    Lo 53°

    Low clouds

    Snow Days Weather
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Wed

    Apr 22

    69°Lo 51°

    Warmer

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

    Apr 23

    66°Lo 53°

    Breezy with some sun

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

    Apr 24

    64°Lo 51°

    Breezy with some sun

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

    Apr 25

    68°Lo 56°

    Partly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 52° 52° 52° 52° 54° 55° 56° 58°
RealFeel® 49° 49° 48° 48° 51° 53° 55° 56°
Humidity 90% 91% 93% 93% 88% 85% 82% 80%
   
  4am 5am 6am 7am 8am 9am 10am 11am
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%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 8 WSW 8 WSW 8 WSW 9 WSW 8 WSW 8 W 8 W 10 WSW
UV Index 0 0 0 0 0 1 1 2
Cloud Cover 98% 98% 98% 94% 99% 98% 98% 98%
Dew Point 49° 50° 50° 50° 50° 51° 51° 51°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 60° 65° 86° (2009) 69°
Low 53° 50° 39° (1968) 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:27 AM with 13:24 of sunlight, then sets at 7:51 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:51 AM with 14:25 of moolight, then sets at 11:16 PM

San Bruno Weather Report

San Francisco: Clouds, Showers to Linger Ahead of Weekend

April 21, 2015; 11:20 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 >

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

Tue. Snow Day Potential