• Early AM

    Apr 21

    Lo 50°

    Low clouds

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Today

    Apr 21

    64°Lo 51°

    Low clouds breaking

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

    Apr 22

    60°Lo 48°

    Mostly cloudy with a shower

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

    Apr 23

    64°Lo 51°

    Sunshine and patchy clouds

    Low indoor dust & dander levels
    • Precip
      3%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      25%
    more
  • Thu

    Apr 24

    62°Lo 54°

    Times of clouds and sun

    Low indoor dust & dander levels
    • Precip
      16%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      70%
    more
Next Previous
A brief shower or two 52° Lo 51° RealFeel® 46° / 44°

N

E

S

W

  • Precipitation: 54%
  • Rain: 0.04 in
  • Snow: 0 in
  • Humidity: 85%
  • Cloud Cover: 81%
  • Dew Point: 47° F
  • Visibility: 9 mi
9 mph

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 64° 65° 86° (2009) 78°
Low 51° 50° 39° (1968) 49°

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 1:24 AM with 10:36 of moolight, then sets at 12:00 PM

Top Story

San Bruno Weather Report

Chance of Rain in San Francisco on Tuesday

April 20, 2014; 9:00 PM ET

There hasn't been any measurable precipitation in San Francisco since April 4. more >

Is it a Cold or the Flu?

Apr 19, 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?

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps