• Tonight

    Dec 19

    Lo 52°

    A shower early; mostly cloudy

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

    Dec 20

    60°Lo 54°

    Mostly cloudy

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

    Dec 21

    63°Lo 53°

    Turning cloudy

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

    Dec 22

    63°Lo 50°

    Mostly sunny and mild

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      19%
    more
  • Tue

    Dec 23

    64°Lo 51°

    Sunshine and patchy clouds

    Ragweed Pollen Weather
    • Precip
      4%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      25%
    more
Next Previous
Hi 60° RealFeel® 60° Precipitation 25%

Day

N

E

S

W

  • SW 4 mph
  • Gusts: 6 mph

Mostly cloudy

  • 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 54° RealFeel® 51° Precipitation 61%

Night

N

E

S

W

  • W 5 mph
  • Gusts: 7 mph

Cloudy with a couple of showers

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

San Bruno Pollen Levels - December 20

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High 60° 56° 69° (1999) 60°
Low 54° 44° 31° (1965) 40°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:20 AM with 9:34 of sunlight, then sets at 4:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:44 AM with 10:25 of moolight, then sets at 4:09 PM

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps