• Early AM

    Jul 31

    Lo 65°

    Partly cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      79°
    • Hi
      RealFeel
      92°
    • Wind
      Speed
      6 mph
    more
  • Today

    Jul 31

    86°Lo 62°

    Sunny and less humid

    Poor for home energy
    • Avg
      RealFeel
      75°
    • Hi
      RealFeel
      88°
    • Wind
      Speed
      4 mph
    more
  • Sat

    Aug 1

    87°Lo 62°

    Sun, some clouds

    Poor for home energy
    • Avg
      RealFeel
      76°
    • Hi
      RealFeel
      90°
    • Wind
      Speed
      5 mph
  • Sun

    Aug 2

    84°Lo 64°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      75°
    • Hi
      RealFeel
      85°
    • Wind
      Speed
      4 mph
    more
  • Mon

    Aug 3

    89°Lo 70°

    Partly sunny

    Poor for home energy
    • Avg
      RealFeel
      80°
    • Hi
      RealFeel
      90°
    • Wind
      Speed
      6 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Clear
Clear
Clear
Clear
Clear
Sunny
Sunny
Mostly Sunny
Temp (°F) 68° 67° 65° 64° 62° 64° 67° 70°
RealFeel® 67° 66° 64° 64° 62° 64° 66° 70°
Humidity 72% 75% 76% 79% 87% 79% 79% 68%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
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0%
 
0%
 
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0%
 
0%
 
0%
 
0%
Snow
 
0%
 
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0%
 
0%
 
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Ice
 
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  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 2 WSW 2 WSW 2 SW 4 SW 4 SSW 4 SW 5 SW 5 WSW
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 9% 0% 0% 0% 0% 2% 5% 10%
Dew Point 59° 59° 57° 57° 58° 57° 60° 59°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2014
High 87° 82° N/A 84°
Low 62° 63° N/A 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:36 AM with 14:30 of sunlight, then sets at 8:06 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:46 PM with 11:28 of moolight, then sets at 8:14 AM

Derry Weather Report

Boston: Some Heat Relief for Friday and Into the Weekend

July 31, 2015; 2:54 AM ET

Some relief from the heat is in store for the Boston area over the next several days. more >

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.

Sat. Home Energy Efficiency

Sat. Degree Days

Sat. UV Index