• Tonight

    May 31

    Lo 52°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
  • Wed

    Jun 1

    72°Lo 52°

    Areas of low clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
    more
  • Thu

    Jun 2

    74°Lo 53°

    Partly sunny and nice

    Low ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
    more
  • Fri

    Jun 3

    76°Lo 53°

    Partly sunny and warm

    Low ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
    more
  • Sat

    Jun 4

    75°Lo 55°

    Partly sunny and beautiful

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 73° RealFeel® 80° Precipitation 2%

Day

N

E

S

W

  • W 7 mph
  • Gusts: 16 mph

Pleasant with some clouds, then sunshine

  • Max UV Index: 9 (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 52° RealFeel® 52° Precipitation 2%

Night

N

E

S

W

  • WSW 5 mph
  • Gusts: 14 mph

Mainly clear early on, then areas of low clouds forming

  • 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 - May 31

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

    Moderate

  • Ragweed Pollen

    Low

  • Mold

    Low

  • Grass Pollen

    Moderate

Temperature History - May 31

more Historical Weather Data >
  Today Normal Record 5/31/2015
High 73° 69° 91° (2001) 67°
Low 52° 53° 46° (1962) 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:50 AM with 14:35 of sunlight, then sets at 8:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:52 AM with 12:38 of moolight, then sets at 3:30 PM

San Bruno Weather Report

San Francisco: Warm, dry weather to kick off June

May 31, 2016; 9:12 PM ET

The first part of June will be dry and warm in the Bay Area after some cooler-than-normal weather during the second half of May. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps