• Early AM

    Apr 18

    Lo 45°

    Partly cloudy

    Running Weather
    • Precip
      8%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
    more
  • Today

    Apr 18

    68°Lo 43°

    Some sun with a shower

    Very Good for running
    • Precip
      56%
    • Hours of Precip
      1
    • Wind
      Gust
      17 mph
  • Sun

    Apr 19

    57°Lo 39°

    Mostly sunny and cooler

    Very Good for running
    • Precip
      15%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
  • Mon

    Apr 20

    48°Lo 44°

    Colder with periods of rain

    Fair for running
    • Precip
      71%
    • Hours of Precip
      10.5
    • Wind
      Gust
      21 mph
    more
  • Tue

    Apr 21

    60°Lo 37°

    Warmer with a shower or two

    Fair for running
    • Precip
      61%
    • Hours of Precip
      2.5
    • Wind
      Gust
      15 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
2pm
3pm 4pm 5pm 6pm 7pm 8pm 9pm
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Showers
Mostly Clear
Clear
Temp (°F) 68° 67° 66° 64° 62° 59° 57° 54°
RealFeel® 72° 70° 66° 64° 60° 52° 53° 49°
Humidity 34% 34% 36% 37% 39% 46% 47% 50%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Rain
 
40%
 
34%
 
37%
 
43%
 
47%
 
51%
 
7%
 
4%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Wind (mph) 8 WSW 9 W 9 WNW 10 WNW 10 NW 10 NW 10 NW 9 NW
UV Index 5 4 3 2 1 0 0 0
Cloud Cover 65% 62% 70% 48% 36% 70% 10% 1%
Dew Point 39° 38° 38° 38° 37° 38° 37° 36°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2014
High 68° 59° N/A 47°
Low 43° 38° N/A 27°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:59 AM with 13:32 of sunlight, then sets at 7:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:59 AM with 13:36 of moolight, then sets at 7:35 PM

Londonderry Weather Report

2015 Boston Marathon Forecast: Rain and Wind in Store for Runners

April 18, 2015; 2:58 AM ET

The 119th Boston Marathon will take place on Monday, April 20, and runners set to take on the historic course will face cool rainy conditions. more >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.