• Tonight

    Aug 31

    Lo 58°

    Increasing clouds

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Thu

    Sep 1

    67°Lo 57°

    Low clouds followed by sun

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

    Sep 2

    71°Lo 57°

    Low clouds, then sun

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

    Sep 3

    69°Lo 57°

    Low clouds, then sunshine

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

    Sep 4

    68°Lo 56°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 66° RealFeel® 69° Precipitation 4%

Day

N

E

S

W

  • W 14 mph
  • Gusts: 24 mph

Partly sunny

  • Max UV Index: 7 (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 58° RealFeel® 55° Precipitation 4%

Night

N

E

S

W

  • W 10 mph
  • Gusts: 22 mph

Increasing clouds

  • 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 Francisco Pollen Levels - August 31

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

    Low

  • Ragweed Pollen

    Low

  • Mold

    Low

  • Grass Pollen

    Low

Temperature History - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2015
High 66° 70° 87° (1943) 75°
Low 58° 55° 48° (1910) 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:40 AM with 12:59 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:58 AM with 13:26 of moolight, then sets at 7:24 PM

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps