• Early AM

    Dec 21

    Lo 54°

    A shower possible

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

    Dec 21

    64°Lo 55°

    Turning cloudy

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

    Dec 22

    64°Lo 51°

    Mostly sunny and mild

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

    Dec 23

    64°Lo 51°

    Mostly sunny

    Low ragweed pollen levels
    • Precip
      2%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      15%
    more
  • Wed

    Dec 24

    61°Lo 50°

    Mostly cloudy

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      76%
    more
Next Previous
Hi 64° RealFeel® 62° Precipitation 15%

Day

N

E

S

W

  • WSW 7 mph
  • Gusts: 12 mph

Sun and areas of high clouds this morning followed by clouds and breaks of sun

  • Max UV Index: 1 (Low)
  • 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 55° RealFeel® 52° Precipitation 10%

Night

N

E

S

W

  • WNW 7 mph
  • Gusts: 10 mph

Partly cloudy

  • 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 - December 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 64° 56° 68° (1999) 60°
Low 55° 44° 28° (1990) 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:21 AM with 9:34 of sunlight, then sets at 4:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:43 AM with 10:23 of moolight, then sets at 5:06 PM

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps