• Early AM

    Jul 31

    Lo 55°

    Cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Jul 31

    73°Lo 57°

    Areas of fog, then sun

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

    Aug 1

    72°Lo 54°

    Fog to sun

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

    Aug 2

    70°Lo 53°

    Low clouds, then sunshine

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

    Aug 3

    71°Lo 55°

    Clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 72° RealFeel® 77° Precipitation 2%

Day

N

E

S

W

  • W 7 mph
  • Gusts: 14 mph

Areas of low clouds and fog giving way to sun

  • Max UV Index: 8 (Very 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 54° RealFeel® 54° Precipitation 1%

Night

N

E

S

W

  • WSW 5 mph
  • Gusts: 12 mph

Mainly clear early on, then areas of low clouds and fog

  • 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 1

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Low

  • Ragweed Pollen

    Low

  • Mold

    Low

  • Grass Pollen

    Low

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2015
High 72° 72° 100° (1993) 75°
Low 54° 56° 48° (1951) 62°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:14 AM with 14:03 of sunlight, then sets at 8:17 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:06 AM with 14:20 of moolight, then sets at 7:26 PM

San Bruno Weather Report

Western US: Diminishing heat to aid in firefighting efforts this week

July 31, 2016; 1:27 AM ET

As several large fires continue to rage across the western United States, weather conditions will gradually improve for firefighting efforts this week. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps