• Early AM

    Feb 11

    Lo 18°

    Mostly cloudy

    Lawn Mowing Weather
    • Hours of Precip
      2.5
    • Precip
      7%
    • Hi
      RealFeel
      37°
    more
  • Today

    Feb 11

    28°Lo 5°

    Colder with snow showers

    Poor for lawn mowing
    • Hours of Precip
      2
    • Precip
      0%
    • Hi
      RealFeel
      21°
    more
  • Fri

    Feb 12

    23°Lo 13°

    Cold with clouds and sun

    Poor for lawn mowing
    • Hours of Precip
      0.5
    • Precip
      44%
    • Hi
      RealFeel
      20°
    more
  • Sat

    Feb 13

    17°Lo -6°

    A snow squall in the morning

    Poor for lawn mowing
    • Hours of Precip
      1
    • Precip
      1%
    • Hi
      RealFeel
  • Sun

    Feb 14

    11°Lo -1°

    Frigid with clouds and sun

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Cloudy
Flurries
Mostly Cloudy
Flurries
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 15° 17° 16° 15° 13° 11° 10°
RealFeel® -3° -3° -8° -8° -10° -12°
Humidity 53% 46% 46% 46% 47% 47% 47% 48%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
37%
 
47%
 
51%
 
43%
 
51%
 
47%
 
40%
 
34%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 12 WNW 15 WNW 16 WNW 16 WNW 17 WNW 17 WNW 16 WNW 15 WNW
UV Index 1 1 1 2 2 1 1 0
Cloud Cover 93% 90% 86% 83% 82% 82% 83% 86%
Dew Point -2° -3° -4° -5° -6° -8°
Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F Middle Grid line 5 F

Temperature History - Feb 13

more Historical Weather Data >
  Today Normal Record 2/13/2015
High 17° 36° N/A 16°
Low -6° 18° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:46 AM with 10:28 of sunlight, then sets at 5:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:44 AM with 13:44 of moolight, then sets at 11:28 PM

Londonderry Weather Report

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

February 11, 2016; 2:14 AM 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 >

Sat. Degree Days

Sat. Evapotranspiration