• Today

    Aug 20

    71°Lo 60°

    Low clouds, then sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
  • Thu

    Aug 21

    72°Lo 59°

    Low clouds break for some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Fri

    Aug 22

    70°Lo 57°

    Low clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sat

    Aug 23

    73°Lo 57°

    Low clouds, then some sun

    Low ragweed pollen levels
    • Precip
      2%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      60%
    more
  • Sun

    Aug 24

    73°Lo 58°

    Clouds, then sun

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      57%
    more
Next Previous
Hi 71° RealFeel® 73° Precipitation 2%

Day

N

E

S

W

  • W 8 mph
  • Gusts: 13 mph

Low clouds followed by sunshine

  • Max UV Index: 7 (High)
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 60° RealFeel® 57° Precipitation 2%

Night

N

E

S

W

  • W 4 mph
  • Gusts: 9 mph

Mainly clear this evening followed by late-night low clouds

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

San Bruno Pollen Levels - August 20

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Aug 20

more Historical Weather Data >
  Today Normal Record 8/20/2013
High 71° 73° 84° (1964) 76°
Low 60° 56° 47° (1955) 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 13:27 of sunlight, then sets at 7:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:16 AM with 14:26 of moolight, then sets at 4:42 PM

Top Story

San Bruno Weather Report

Firefighters Race to Contain Blaze Near Yosemite

August 20, 2014; 11:04 AM ET

All evacuation orders were lifted as containment increased early Wednesday. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps