• Early AM

    May 1

    Lo 53°

    Mainly clear

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

    May 1

    77°Lo 52°

    Sunny and warm

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

    May 2

    70°Lo 52°

    Clouds breaking for sun

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

    May 3

    66°Lo 52°

    Periods of sun

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

    May 4

    63°Lo 51°

    Mainly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 77° RealFeel® 86° Precipitation 14%

Day

N

E

S

W

  • WNW 6 mph
  • Gusts: 12 mph

Sunny and warm

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 52° RealFeel® 52° Precipitation 8%

Night

N

E

S

W

  • SSW 5 mph
  • Gusts: 9 mph

Mainly clear in the evening followed by low clouds

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • 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 - May 1

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

    Low

  • Ragweed Pollen

    Low

  • Mold

    Low

  • Grass Pollen

    Low

Temperature History - May 1

more Historical Weather Data >
  Today Normal Record 5/1/2015
High 77° 66° 89° (1947) 75°
Low 52° 50° 44° (2008) 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:14 AM with 13:46 of sunlight, then sets at 8:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:19 AM with 10:59 of moolight, then sets at 1:18 PM

San Bruno Weather Report

San Francisco: Rain showers may dampen the Bay Area for midweek

May 1, 2016; 2:37 AM ET

There is the potential a storm will dive across California and bring a soaking rain for later next week and weekend. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps