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  • Today

    Apr 18

    An afternoon shower or two 69°Lo 38°
    more
  • Sun

    Apr 19

    Mostly sunny 60°Lo 37°
    more
  • Mon

    Apr 20

    Cooler with periods of rain 50°Lo 48°
    more
  • Tue

    Apr 21

    Cloudy, brief showers; warmer 63°Lo 38°
  • Wed

    Apr 22

    Mostly cloudy 60°Lo 38°
    more
Brief showers 63° Lo 57° RealFeel® 64° / 52°

N

E

S

W

  • Precipitation: 52%
  • Rain: 0.02 in
  • Snow: 0 in
  • Humidity: 59%
  • Cloud Cover: 76%
  • Dew Point: 47° F
  • Visibility: 7 mi
9 mph

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 63° 60° 87° (1954) 74°
Low 38° 36° 22° (1969) 32°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:55 AM with 13:39 of sunlight, then sets at 7:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:08 AM with 14:47 of moolight, then sets at 10:55 PM

North Chelmsford Weather Report

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

April 18, 2015; 4:28 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 and rainy conditions. more >