• Mostly cloudy 48°
    Home Energy Efficiency Current Weather
    • Yesterday
      Temp
      48°
    • Wind
      Chill
      47°
    • Wind
      Speed
      4 mph
  • Today

    Jan 30

    Hi 63°

    Partly sunny

    Poor for home energy
    • Avg
      RealFeel
      55°
    • Hi
      RealFeel
      62°
    • Wind
      Speed
      7 mph
    Day Details >
  • Tomorrow

    Jan 31

    Hi 66°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      66°
    • Wind
      Speed
      7 mph
    Day Details >
  • Sunday

    Feb 1

    Hi 62°

    Partial sunshine

    Poor for home energy
    • Avg
      RealFeel
      54°
    • Hi
      RealFeel
      62°
    • Wind
      Speed
      5 mph
    Day Details >
Next

Mostly sunny this weekend

1/30 1/31 Now: 5:07am
AM 5-9
  • 5am Partly cloudy 48° 0%
  • 6am Mostly clear 49° 0%
  • 7am Mostly cloudy 50° 0%
  • 8am Intermittent clouds 51° 0%
  • 9am Partly sunny 53° 0%
PM 4-9
  • 4pm Mostly sunny 62° 0%
  • 5pm Mostly sunny 61° 0%
  • 6pm Mostly clear 58° 0%
  • 7pm Mostly clear 56° 0%
  • 8pm Mostly clear 55° 0%
  • 9pm Clear 55° 0%
PM 10-3
  • 10pm Clear 54° 0%
  • 11pm Clear 54° 0%
  • 12am Clear 53° 0%
  • 1am Clear 53° 0%
  • 2am Clear 52° 0%
  • 3am Clear 52° 0%
Hourly Forecast >
Jan 29, 2015; 12:16 PM ET
Five-day Weather Forecast for San Francisco, CA
San Francisco, CA Weather Forecast

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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.

Fri. Home Energy Efficiency

Fri. Degree Days

Fri. UV Index