• Tonight

    Sep 21

    Lo 59°

    Clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
  • Mon

    Sep 22

    78°Lo 58°

    Plenty of sun

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

    Sep 23

    79°Lo 61°

    Plenty of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Wed

    Sep 24

    77°Lo 61°

    Some sun, then clouds

    Low ragweed pollen levels
    • Precip
      11%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      51%
    more
  • Thu

    Sep 25

    72°Lo 57°

    Cool with periods of sun

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      51%
    more
Next Previous
Clear 62° Lo 59° RealFeel® 58° / 55°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 90%
  • Cloud Cover: 8%
  • Dew Point: 58° F
  • Visibility: 10 mi
8 mph

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 78° N/A N/A 67°
Low 59° N/A N/A 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 1:20 AM with 0:00 of sunlight, then sets at 1:20 AM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:20 AM with 0:00 of moolight, then sets at 1:20 AM

Top Story

Clayton Weather Report

Dry, Sunny Weather Continues for Much of the Week in San Francisco

September 21, 2014; 3:10 AM ET

Sunshine will continue for much of the region this week. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps