• Today

    Mar 4

    65°Lo 47°

    Brilliant sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Thu

    Mar 5

    68°Lo 47°

    Plenty of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Fri

    Mar 6

    68°Lo 47°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sat

    Mar 7

    68°Lo 48°

    Sunny to partly cloudy

    Low ragweed pollen levels
    • Precip
      3%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      25%
    more
  • Sun

    Mar 8

    66°Lo 49°

    Areas of low clouds, then sun

    Ragweed Pollen Weather
    • Precip
      4%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      50%
    more
Next Previous
Hi 65° RealFeel® 71° Precipitation 1%

Day

N

E

S

W

  • NNE 5 mph
  • Gusts: 12 mph

Brilliant sunshine

  • Max UV Index: 5 (Moderate)
  • 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 47° RealFeel® 46° Precipitation 2%

Night

N

E

S

W

  • ENE 5 mph
  • Gusts: 8 mph

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 - March 4

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 65° 61° 77° (1984) 62°
Low 47° 47° 35° (1966) 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:37 AM with 11:29 of sunlight, then sets at 6:06 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:30 PM with 12:54 of moolight, then sets at 6:24 AM

San Bruno Weather Report

San Francisco: Dry Pattern, Warmth to Continue Through Weekend

March 4, 2015; 11:35 AM ET

Above-average temperatures and clear, sunny skies will sweep across San Francisco through out the rest of the week and into early next week. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps