• Early AM

    Dec 21

    Lo 39°

    Mostly cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      36°
    • Hi
      RealFeel
      41°
    • Wind
      Speed
      7 mph
    more
  • Today

    Dec 21

    43°Lo 37°

    A bit of snow and rain

    Fair for home energy
    • Avg
      RealFeel
      38°
    • Hi
      RealFeel
      40°
    • Wind
      Speed
      6 mph
  • Mon

    Dec 22

    46°Lo 40°

    Mostly cloudy

    Fair for home energy
    • Avg
      RealFeel
      37°
    • Hi
      RealFeel
      42°
    • Wind
      Speed
      8 mph
    more
  • Tue

    Dec 23

    48°Lo 44°

    Mostly cloudy with mist

    Fair for home energy
    • Avg
      RealFeel
      37°
    • Hi
      RealFeel
      39°
    • Wind
      Speed
      12 mph
    more
  • Wed

    Dec 24

    52°Lo 47°

    Breezy with rain

    Fair for home energy
    • Avg
      RealFeel
      38°
    • Hi
      RealFeel
      39°
    • Wind
      Speed
      23 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Rain & Snow
Rain
Cloudy
Cloudy
Temp (°F) 39° 39° 39° 39° 39° 40° 41° 42°
RealFeel® 35° 35° 34° 37° 36° 36° 38° 39°
Humidity 76% 75% 74% 83% 84% 81% 79% 80%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
28%
 
28%
 
33%
 
48%
 
52%
 
52%
 
40%
 
34%
Snow
 
0%
 
0%
 
0%
 
40%
 
51%
 
40%
 
13%
 
13%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 6 NE 6 NE 6 NE 5 NE 5 NE 5 NE 6 NE 6 NE
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 100% 97% 95% 100% 97% 94% 92% 92%
Dew Point 32° 32° 31° 34° 34° 34° 35° 36°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 43° 41° N/A 50°
Low 37° 28° N/A 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:03 AM with 9:09 of sunlight, then sets at 4:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:15 AM with 10:02 of moolight, then sets at 4:17 PM

Chatham Weather Report

Boston: Chilly, Snowy Weekend to be Followed by Christmas Eve Storm

December 21, 2014; 3:21 AM ET

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

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Sun. Home Energy Efficiency

Sun. Degree Days

Sun. UV Index