• Today

    Sep 21

    77°Lo 58°

    A.M. downpours; mostly cloudy

    Poor for home energy
    • Avg
      RealFeel
      67°
    • Hi
      RealFeel
      80°
    • Wind
      Speed
      4 mph
  • Mon

    Sep 22

    68°Lo 42°

    Breezy with clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      54°
    • Hi
      RealFeel
      66°
    • Wind
      Speed
      12 mph
    more
  • Tue

    Sep 23

    69°Lo 44°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      69°
    • Wind
      Speed
      6 mph
    more
  • Wed

    Sep 24

    68°Lo 41°

    Plenty of sun

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      71°
    • Wind
      Speed
      4 mph
    more
  • Thu

    Sep 25

    71°Lo 47°

    Plenty of sun

    Poor for home energy
    • Avg
      RealFeel
      60°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      4 mph
    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
Showers
Cloudy
Cloudy
Cloudy
Showers
Showers
Mostly Cloudy
Temp (°F) 69° 67° 67° 66° 65° 65° 65° 63°
RealFeel® 69° 67° 66° 65° 65° 64° 64° 62°
Humidity 90% 93% 93% 93% 93% 93% 93% 93%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Rain
 
47%
 
51%
 
47%
 
43%
 
47%
 
51%
 
52%
 
48%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Wind (mph) 2 E 2 SSE 2 SSW 2 SW 2 WSW 3 WSW 4 W 4 W
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 98% 100% 100% 98% 94% 90% 87% 88%
Dew Point 66° 65° 65° 64° 63° 63° 63° 61°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 77° 70° N/A 76°
Low 58° 50° N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 12:14 of sunlight, then sets at 6:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:00 AM with 13:21 of moolight, then sets at 5:21 PM

Top Story

Londonderry Weather Report

Boston: September Temperature Roller Coaster to Continue

September 21, 2014; 4:42 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Boston. 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