• Today

    May 27

    64°Lo 53°

    Low clouds, then some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Thu

    May 28

    62°Lo 53°

    Low clouds breaking

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Fri

    May 29

    62°Lo 54°

    Clearing and cool

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sat

    May 30

    69°Lo 54°

    Partly sunny and cool

    Low ragweed pollen levels
    • Precip
      0%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      38%
    more
  • Sun

    May 31

    68°Lo 58°

    Mostly sunny and cool

    Ragweed Pollen Weather
    • Precip
      0%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      22%
Next Previous
Mostly sunny 68° Lo 63° RealFeel® 71° / 61°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 57%
  • Cloud Cover: 42%
  • Dew Point: 50° F
  • Visibility: 10 mi
13 mph

Temperature History - May 31

more Historical Weather Data >
  Today Normal Record 5/31/2014
High 68° 76° N/A 73°
Low 58° 51° N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:50 AM with 14:33 of sunlight, then sets at 8:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:35 PM with 10:45 of moolight, then sets at 5:20 AM

Los Altos Weather Report

San Francisco: Seasonable, Dry Weather to Remain Through Late Week

May 27, 2015; 8:33 AM ET

Dry and seasonable weather is forecast for San Francisco this week. more >

Sun. Dust & Dander

Sun. Wind Maps