• Today

    Jul 31

    73°Lo 62°

    Low clouds, then some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sat

    Aug 1

    74°Lo 63°

    Low clouds, then some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Aug 2

    72°Lo 61°

    Low clouds followed by sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Aug 3

    73°Lo 60°

    Low clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Tue

    Aug 4

    71°Lo 58°

    Low clouds, then sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
2pm
3pm 4pm 5pm 6pm 7pm 8pm 9pm
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
Mostly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Cloudy
Temp (°F) 72° 73° 71° 70° 68° 66° 65° 64°
RealFeel® 77° 76° 73° 69° 66° 63° 62° 62°
Humidity 68% 69% 70% 72% 74% 78% 79% 80%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
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%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Wind (mph) 12 WNW 12 WNW 13 WNW 13 W 12 W 12 W 9 W 8 WSW
UV Index 7 6 5 3 1 0 0 0
Cloud Cover 45% 45% 34% 26% 30% 45% 45% 45%
Dew Point 61° 62° 61° 60° 59° 59° 58° 58°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2014
High 73° 72° 97° (1993) 72°
Low 62° 56° 49° (1956) 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 14:07 of sunlight, then sets at 8:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:28 PM with 11:15 of moolight, then sets at 7:43 AM

San Bruno Weather Report

San Francisco: Dry Weather Continues in the Bay Area

July 31, 2015; 10:41 AM ET

The only fly in the ointment in the forecast will be low morning clouds which may cause travel delays at San Francisco International Airport. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps