• Today

    Apr 21

    63°Lo 39°

    Warmer with clearing

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Wed

    Apr 22

    61°Lo 39°

    Rather cloudy, p.m. showers

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Thu

    Apr 23

    51°Lo 34°

    Clouds and sun with a shower

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Fri

    Apr 24

    49°Lo 34°

    Chilly with periods of sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sat

    Apr 25

    55°Lo 35°

    Partly sunny, a shower or two

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 51° RealFeel® 47° Precipitation 41%

Day

N

E

S

W

  • W 14 mph
  • Gusts: 26 mph

Times of sun and clouds; breezy and cooler with a shower in spots

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.03 in
  • Rain: 0.03 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 34° RealFeel® 26° Precipitation 15%

Night

N

E

S

W

  • W 9 mph
  • Gusts: 17 mph

Mainly clear

  • Max UV Index: N/A
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Apr 23

more Historical Weather Data >
  Today Normal Record 4/23/2014
High 51° 61° N/A 54°
Low 34° 40° N/A 46°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:52 AM with 13:45 of sunlight, then sets at 7:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:52 AM with 14:48 of moolight, then sets at 12:40 AM

Londonderry Weather Report

Boston: Cooler Air to Sweep Away Warmth This Week

April 21, 2015; 10:52 AM ET

Cooler air will push into the Boston area during the middle and latter part of the week. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

Thu. Snow Day Potential