• Tonight

    Feb 10

    Lo 19°

    Mostly cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      26°
    • Hi
      RealFeel
      37°
    • Wind
      Speed
      2 mph
    more
  • Thu

    Feb 11

    27°Lo 7°

    A snow shower; windy, colder

    Very Good for home energy
    • Avg
      RealFeel
    • Hi
      RealFeel
      11°
    • Wind
      Speed
      16 mph
  • Fri

    Feb 12

    24°Lo 11°

    Cold with clouds and sun

    Very Good for home energy
    • Avg
      RealFeel
      12°
    • Hi
      RealFeel
      20°
    • Wind
      Speed
      7 mph
    more
  • Sat

    Feb 13

    17°Lo -6°

    A snow squall in the morning

    Very Good for home energy
    • Avg
      RealFeel
      -12°
    • Hi
      RealFeel
    • Wind
      Speed
      16 mph
    more
  • Sun

    Feb 14

    11°Lo -1°

    Frigid with clouds and sun

    Excellent for home energy
    • Avg
      RealFeel
      -1°
    • Hi
      RealFeel
    • Wind
      Speed
      12 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 26° 25° 24° 23° 22° 21° 19° 22°
RealFeel® 25° 25° 24° 24° 18° 14° 10°
Humidity 72% 71% 72% 72% 71% 71% 77% 67%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
3%
 
19%
 
19%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 5 W 5 W 4 W 4 W 6 W 8 W 9 W 12 W
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 76% 76% 76% 90% 94% 94% 94% 94%
Dew Point 18° 17° 16° 15° 14° 13° 13° 12°
Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F

Temperature History - Feb 11

more Historical Weather Data >
  Today Normal Record 2/11/2015
High 27° 36° N/A 24°
Low 18° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:49 AM with 10:23 of sunlight, then sets at 5:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:31 AM with 12:35 of moolight, then sets at 9:06 PM

Londonderry Weather Report

Boston: Polar vortex to smack region during Valentine's Day weekend

February 10, 2016; 5:08 PM ET

The coldest air of the winter and perhaps during all of last winter will plunge across the Boston area during Valentine's Day weekend. more >

Thu. Home Energy Efficiency

Thu. Degree Days

Thu. UV Index