• Early AM

    May 21

    Lo 53°

    Mainly clear

    Dust & Dander Weather
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
    more

  • Today

    May 21

    63°Lo 48°

    Low clouds, then sun; cooler

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
    more

  • Wed

    May 22

    66°Lo 49°

    Mostly sunny and breezy

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High

  • Thu

    May 23

    65°Lo 49°

    Partly sunny

    Extreme indoor dust & dander levels
    • Precip
      3%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      26%
    more

  • Fri

    May 24

    64°Lo 52°

    Mostly sunny

    Extreme indoor dust & dander levels
    • Precip
      2%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      20%
    more
Next Previous
Hi 66° RealFeel® 65° Precipitation 5%

Day

N

E

S

W

  • W 20 mph
  • Gusts: 32 mph

Mostly sunny and breezy

  • 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 49° RealFeel® 39° Precipitation 5%

Night

N

E

S

W

  • W 15 mph
  • Gusts: 25 mph

Partly cloudy

  • 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 Francisco Pollen Levels - May 22

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Moderate

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - May 22

more Historical Weather Data >
  Today Normal Record 5/22/2012
High 66° 65° 85° (1943) 62°
Low 49° 51° 44° (1909) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:55 AM with 14:23 of sunlight, then sets at 8:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:49 PM with 10:52 of moolight, then sets at 4:41 AM

Smoke Alert: The Hidden Dangers of E-Cigarettes

May 20, 2013; 5:00 AM ET E-cigarette manufacturers claim the devices can help a person quit smoking but have those claims ever been proven?

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps