• Partly cloudy 68°
    Home Energy Efficiency Current Weather
    • Yesterday
      Temp
      66°
    • Wind
      Chill
      68°
    • Wind
      Speed
      8 mph
  • Tonight

    Aug 21

    Lo 59°

    Becoming cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      67°
    • Hi
      RealFeel
      78°
    • Wind
      Speed
      7 mph
    Day Details >
  • Tomorrow

    Aug 22

    Hi 72°

    Low clouds, then sunshine

    Poor for home energy
    • Avg
      RealFeel
      64°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      9 mph
    Day Details >
  • Saturday

    Aug 23

    Hi 73°

    Low clouds breaking

    Poor for home energy
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      77°
    • Wind
      Speed
      6 mph
    Day Details >
Next

Clouds and sun this weekend

8/21 8/22 Now: 8:47pm
PM 8-12
  • 8pm Clear 66° 0%
  • 9pm Mostly clear 64° 0%
  • 10pm Mostly clear 61° 0%
  • 11pm Mostly clear 61° 0%
  • 12am Mostly clear 60° 0%
AM 7-12
  • 7am Cloudy 59° 0%
  • 8am Cloudy 61° 0%
  • 9am Cloudy 63° 0%
  • 10am Cloudy 64° 0%
  • 11am Cloudy 66° 0%
  • 12pm Cloudy 68° 0%
PM 1-6
  • 1pm Cloudy 70° 0%
  • 2pm Mostly sunny 71° 0%
  • 3pm Mostly sunny 72° 0%
  • 4pm Mostly sunny 70° 0%
  • 5pm Mostly sunny 68° 0%
  • 6pm Mostly sunny 66° 0%
Hourly Forecast >

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Top Story

San Mateo Weather Report

Firefighters Race to Contain Blaze Near Yosemite

August 21, 2014; 12:45 PM ET

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

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Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Thu. Home Energy Efficiency

Thu. Degree Days

Thu. UV Index