• Today

    Dec 19

    35°Lo 22°

    Mostly sunny

    Poor for biking
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      14 mph
    more
  • Sat

    Dec 20

    34°Lo 24°

    Times of clouds and sun

    Fair for biking
    • Precip
      11%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
    more
  • Sun

    Dec 21

    34°Lo 25°

    Some sun

    Fair for biking
    • Precip
      23%
    • Hours of Precip
      0
    • Wind
      Gust
      4 mph
  • Mon

    Dec 22

    38°Lo 31°

    Some sun, then turning cloudy

    Good for biking
    • Precip
      12%
    • Hours of Precip
      0
    • Wind
      Gust
      6 mph
    more
  • Tue

    Dec 23

    43°Lo 37°

    Mainly cloudy, rain possible

    Poor for biking
    • Precip
      35%
    • Hours of Precip
      0
    • Wind
      Gust
      13 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°F) 27° 29° 31° 32° 33° 34° 34° 33°
RealFeel® 27° 31° 34° 35° 36° 36° 36° 34°
Humidity 78% 73% 69% 66% 64% 64% 65% 68%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
4%
 
4%
 
4%
 
4%
 
4%
 
4%
 
4%
 
4%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 4 NNE 4 N 4 N 2 N 2 N 2 N 2 N 2 N
UV Index 0 1 1 1 1 1 0 0
Cloud Cover 45% 45% 45% 45% 45% 45% 45% 45%
Dew Point 20° 21° 22° 22° 22° 23° 23° 23°
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 34° 36° N/A 56°
Low 25° 20° N/A 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:13 AM with 9:01 of sunlight, then sets at 4:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:24 AM with 9:55 of moolight, then sets at 4:19 PM

Derry Weather Report

Boston: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 19, 2014; 2:08 AM ET

Following benign weather this weekend, a major storm will affect Boston, much of the East and Midwest on Christmas Eve. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.