• Today

    May 1

    81°Lo 52°

    Mostly sunny

    Excellent for an outdoor bbq
    • Precip
      40%
    • Hi
      RealFeel
      90°
    • Wind
      Speed
      5 mph
  • Mon

    May 2

    77°Lo 52°

    Low clouds, then sun

    Excellent for an outdoor bbq
    • Precip
      0%
    • Hi
      RealFeel
      83°
    • Wind
      Speed
      6 mph
    more
  • Tue

    May 3

    71°Lo 53°

    Times of clouds and sun

    Excellent for an outdoor bbq
    • Precip
      4%
    • Hi
      RealFeel
      77°
    • Wind
      Speed
      6 mph
    more
  • Wed

    May 4

    66°Lo 51°

    Mostly cloudy and cool

    Excellent for an outdoor bbq
    • Precip
      12%
    • Hi
      RealFeel
      72°
    • Wind
      Speed
      7 mph
    more
  • Thu

    May 5

    64°Lo 49°

    A stray afternoon shower

    Very Good for an outdoor bbq
    • Precip
      42%
    • Hi
      RealFeel
      69°
    • Wind
      Speed
      8 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
5am
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  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Partly Cloudy
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 54° 54° 53° 59° 64° 69° 74° 77°
RealFeel® 54° 54° 53° 63° 71° 77° 84° 88°
Humidity 74% 77% 78% 61% 49% 40% 33% 29%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
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Snow
 
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Ice
 
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  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 4 ESE 4 E 5 ENE 2 NNE 2 NE 2 E 2 S 4 WSW
UV Index 0 0 0 1 3 5 7 8
Cloud Cover 31% 11% 11% 11% 11% 11% 11% 11%
Dew Point 46° 47° 46° 46° 45° 44° 43° 43°
Middle Grid line 80 F 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 Middle Grid line 50 F

Temperature History - May 1

more Historical Weather Data >
  Today Normal Record 5/1/2015
High 81° 72° N/A 78°
Low 52° 46° N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 13:47 of sunlight, then sets at 7:59 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:58 AM with 11:23 of moolight, then sets at 2:21 PM

Los Altos Weather Report

San Francisco: Rain showers may dampen the Bay Area for midweek

May 1, 2016; 9:07 AM ET

Dry conditions will dominate the region through early this week in the Bay Area before rain tries to return for the middle of the week. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.

Sun. Outdoor Entertaining

Sun. Wind Maps

Sun. UV Index