• Tonight

    Dec 21

    Lo 27°

    Rather cloudy

    Snow Days Weather
    • Snow
      57%
    • Ice
      0%
    • Snow
      0.34 in
  • Mon

    Dec 22

    39°Lo 35°

    Mostly cloudy

    Very Unlikely for a snow day
    • Snow
      8%
    • Ice
      0%
    • Snow
      0 in
    more
  • Tue

    Dec 23

    45°Lo 41°

    Mainly cloudy and damp

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

    Dec 24

    57°Lo 52°

    Breezy and mild with rain

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

    Dec 25

    56°Lo 32°

    A little morning rain; cloudy

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
8pm
9pm 10pm 11pm Mon
12am
1am 2am 3am
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Forecast
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 30° 30° 29° 29° 28° 28° 28° 28°
RealFeel® 29° 29° 30° 29° 29° 28° 28° 28°
Humidity 85% 86% 86% 86% 88% 89% 88% 89%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
20%
 
20%
 
20%
 
20%
 
16%
 
7%
 
7%
 
7%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Wind (mph) 4 N 4 N 2 N 2 N 2 N 2 N 2 NNE 2 NE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 96% 92% 88% 85% 81% 78% 76% 76%
Dew Point 26° 26° 26° 25° 25° 25° 25° 25°
Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 35° 38° N/A 56°
Low 27° 20° N/A 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:12 AM with 9:03 of sunlight, then sets at 4:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:23 AM with 9:57 of moolight, then sets at 4:20 PM

North Chelmsford Weather Report

Boston: Christmas Eve Storm to Affect Holiday Travel This Week

December 21, 2014; 5:03 PM ET

Holiday travel will be at risk across the Boston area this week as a strong storm takes shape and blasts through the Northeast. 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.

48 Hour Precipitation Forecast

Sun. Snow Day Potential