• Today

    Mar 26

    82°Lo 54°

    Sunny and warmer

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Fri

    Mar 27

    73°Lo 53°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sat

    Mar 28

    74°Lo 51°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sun

    Mar 29

    78°Lo 53°

    Partly sunny and pleasant

    Low ragweed pollen levels
    • Precip
      5%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      26%
    more
  • Mon

    Mar 30

    76°Lo 52°

    Sunny and beautiful

    Ragweed Pollen Weather
    • Precip
      13%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      5%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
11pm
Fri
12am
1am 2am 3am 4am 5am 6am
  11pm 12am 1am 2am 3am 4am 5am 6am
Forecast
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Partly Cloudy
Temp (°F) 63° 62° 61° 59° 58° 57° 57° 57°
RealFeel® 64° 63° 62° 61° 60° 59° 58° 58°
Humidity 76% 77% 79% 81% 81% 82% 84% 82%
   
  11pm 12am 1am 2am 3am 4am 5am 6am
Rain
 
0%
 
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Snow
 
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Ice
 
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  11pm 12am 1am 2am 3am 4am 5am 6am
Wind (mph) 1 NW 1 NW 1 WNW 1 WNW 1 W 1 W 1 W 1 WNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 0% 2% 3% 0% 0% 0% 0% 34%
Dew Point 55° 54° 54° 54° 52° 52° 52° 51°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Mar 26

more Historical Weather Data >
  Today Normal Record 3/26/2014
High 82° 67° N/A 63°
Low 54° 44° N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:03 AM with 12:23 of sunlight, then sets at 7:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:53 AM with 14:24 of moolight, then sets at 2:17 AM

Los Altos Weather Report

San Francisco: Drier Weather to Hold Into Weekend

March 26, 2015; 8:20 AM ET

Those in the Bay area can expect drier and warmer weather, which will hold into the weekend. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps