• Today

    Aug 22

    76°Lo 59°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sat

    Aug 23

    76°Lo 60°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
  • Sun

    Aug 24

    75°Lo 59°

    Low clouds, then sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Mon

    Aug 25

    75°Lo 60°

    Partly sunny

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      26%
    more
  • Tue

    Aug 26

    78°Lo 60°

    Partly sunny and delightful

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      47%
    more
Next Previous
Hi 76° RealFeel® 79° Precipitation 1%

Day

N

E

S

W

  • N 6 mph
  • Gusts: 11 mph

Partly sunny

  • Max UV Index: 7 (High)
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 60° RealFeel® 58° Precipitation 1%

Night

N

E

S

W

  • E 4 mph
  • Gusts: 8 mph

Mainly clear

  • 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

Los Altos Pollen Levels - August 23

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Aug 23

more Historical Weather Data >
  Today Normal Record 8/23/2013
High 76° 80° N/A 72°
Low 60° 55° N/A 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 13:19 of sunlight, then sets at 7:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:54 AM with 13:43 of moolight, then sets at 6:37 PM

Top Story

Los Altos Weather Report

San Francisco: Dry Skies, Typical Temperatures Provide No Drought Relief

August 22, 2014; 8:07 AM ET

In typical Bay Area fashion, morning clouds will break and make way for sunny skies in the afternoons as temperatures will hit typical averages for this time of year. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps