• Today

    Jul 11

    75°Lo 59°

    Partly sunny

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

    Jul 12

    74°Lo 58°

    Mostly sunny

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

    Jul 13

    77°Lo 60°

    Sunshine and patchy clouds

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

    Jul 14

    83°Lo 65°

    Mostly sunny

    Low ragweed pollen levels
    • Precip
      0%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      18%
    more
  • Tue

    Jul 15

    79°Lo 64°

    Sunshine and patchy clouds

    Ragweed Pollen Weather
    • Precip
      2%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      25%
    more
Next Previous
Hi 75° RealFeel® 79° Precipitation 2%

Day

N

E

S

W

  • NNW 7 mph
  • Gusts: 13 mph

Partly sunny

  • Max UV Index: 9 (Very High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 59° RealFeel® 58° Precipitation 0%

Night

N

E

S

W

  • N 4 mph
  • Gusts: 11 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 - July 11

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Jul 11

more Historical Weather Data >
  Today Normal Record 7/11/2013
High 75° 80° N/A 70°
Low 59° 55° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:57 AM with 14:34 of sunlight, then sets at 8:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:47 PM with 10:34 of moolight, then sets at 6:21 AM

Top Story

Los Altos Weather Report

San Francisco: Partially Sunny Skies, Rise in Temperature Ahead

July 11, 2014; 4:49 AM ET

San Francisco will see a rise in temperatures over the next several days as partially cloudy skies make way for plenty of sunshine. more >

Battling the Common Cold

Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps