• Today

    Sep 20

    71°Lo 61°

    Areas of low clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sun

    Sep 21

    71°Lo 60°

    Areas of low clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
  • Mon

    Sep 22

    72°Lo 59°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Tue

    Sep 23

    74°Lo 60°

    Areas of low clouds, then sun

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      47%
    more
  • Wed

    Sep 24

    74°Lo 63°

    Chance of a little p.m. rain

    Ragweed Pollen Weather
    • Precip
      30%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      76%
    more
Next Previous
Hi 71° RealFeel® 72° Precipitation 0%

Day

N

E

S

W

  • WNW 7 mph
  • Gusts: 12 mph

Areas of low clouds early; otherwise, mostly sunny

  • Max UV Index: 6 (High)
  • Thunderstorms: 0%
  • 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® 58° Precipitation 0%

Night

N

E

S

W

  • W 5 mph
  • Gusts: 10 mph

Mainly clear

  • 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 - September 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 71° 74° 95° (2003) 68°
Low 60° 56° 45° (1955) 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:56 AM with 12:12 of sunlight, then sets at 7:08 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:38 AM with 13:08 of moolight, then sets at 5:46 PM

Top Story

San Bruno Weather Report

Dry, Sunny Weather Continues for San Francisco

September 20, 2014; 5:03 AM ET

Sunny skies will bathe the Bay Area for the new week. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps