• Early AM

    Aug 21

    Lo 60°

    Increasing clouds

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Today

    Aug 21

    78°Lo 61°

    Partly sunny

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

    Aug 22

    75°Lo 59°

    Mostly sunny

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

    Aug 23

    77°Lo 59°

    Partial sunshine

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      37%
    more
  • Sun

    Aug 24

    77°Lo 59°

    Low clouds, then sunshine

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      56%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Partly Cloudy
Partly Cloudy
Cloudy
Mostly Cloudy
Partly Sunny
Partly Sunny
Partly Sunny
Mostly Sunny
Temp (°F) 61° 61° 60° 60° 64° 65° 67° 70°
RealFeel® 60° 59° 59° 58° 64° 66° 72° 78°
Humidity 83% 84% 85% 88% 80% 77% 72% 67%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 4 NNE 3 NNE 3 NNE 4 ENE 3 S 3 S 3 NW 3 NW
UV Index 0 0 0 0 1 2 4 6
Cloud Cover 32% 45% 59% 76% 34% 45% 32% 26%
Dew Point 56° 56° 56° 56° 58° 58° 58° 59°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 78° 80° N/A 73°
Low 61° 55° N/A 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:30 AM with 13:23 of sunlight, then sets at 7:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:07 AM with 14:17 of moolight, then sets at 5:24 PM

Top Story

Los Altos Weather Report

Firefighters Race to Contain Blaze Near Yosemite

August 21, 2014; 3:07 AM ET

All evacuation orders were lifted as containment increased early Wednesday. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps