• Today

    Dec 18

    42°Lo 26°

    A couple of morning flurries

    Good for home energy
    • Avg
      RealFeel
      25°
    • Hi
      RealFeel
      30°
    • Wind
      Speed
      16 mph
    more
  • Fri

    Dec 19

    34°Lo 21°

    Mostly sunny

    Good for home energy
    • Avg
      RealFeel
      25°
    • Hi
      RealFeel
      29°
    • Wind
      Speed
      8 mph
    more
  • Sat

    Dec 20

    34°Lo 26°

    Sunshine giving way to clouds

    Good for home energy
    • Avg
      RealFeel
      30°
    • Hi
      RealFeel
      34°
    • Wind
      Speed
      5 mph
    more
  • Sun

    Dec 21

    35°Lo 27°

    Mostly sunny

    Good for home energy
    • Avg
      RealFeel
      33°
    • Hi
      RealFeel
      37°
    • Wind
      Speed
      4 mph
  • Mon

    Dec 22

    38°Lo 31°

    Partly sunny

    Fair for home energy
    • Avg
      RealFeel
      34°
    • Hi
      RealFeel
      39°
    • Wind
      Speed
      4 mph
    more
Next Previous
Mainly clear 29° Lo 28° RealFeel® 30° / 29°

N

E

S

W

  • Precipitation: 11%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 89%
  • Cloud Cover: 17%
  • Dew Point: 26° F
  • Visibility: 10 mi
2 mph

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 35° 36° N/A 56°
Low 27° 20° N/A 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:13 AM with 9:01 of sunlight, then sets at 4:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:24 AM with 9:55 of moolight, then sets at 4:19 PM

Derry Weather Report

Boston: Spotty Wintry Weather This Weekend to be Paled by Major Storm Next Week

December 18, 2014; 2:06 AM ET

After a weak storm brings spotty light snow and rain to the region this weekend, a storm will threaten major travel disruptions in Boston before Christmas. 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.

Sun. Home Energy Efficiency

Sun. Degree Days

Sun. UV Index