• Today

    Sep 20

    71°Lo 57°

    Warmer with clouds and sun

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      69°
    more
  • Sun

    Sep 21

    76°Lo 59°

    Variable clouds with a shower

    Very Good for lawn mowing
    • Hours of Precip
      3
    • Precip
      56%
    • Hi
      RealFeel
      78°
  • Mon

    Sep 22

    73°Lo 44°

    Breezy with clouds and sun

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      18%
    • Hi
      RealFeel
      69°
    more
  • Tue

    Sep 23

    69°Lo 45°

    Partly sunny

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      5%
    • Hi
      RealFeel
      70°
    more
  • Wed

    Sep 24

    64°Lo 43°

    Plenty of sun

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      5%
    • Hi
      RealFeel
      70°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Showers
Cloudy
Mostly Cloudy
Temp (°F) 60° 62° 65° 68° 71° 74° 75° 76°
RealFeel® 59° 61° 65° 67° 72° 75° 77° 78°
Humidity 93% 93% 93% 89% 84% 79% 76% 73%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
10%
 
15%
 
15%
 
19%
 
47%
 
51%
 
47%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 3 S 2 S 3 S 4 S 4 SSE 5 SSE 5 SSE 5 SSE
UV Index 0 0 0 1 1 2 2 2
Cloud Cover 89% 90% 90% 90% 90% 90% 90% 88%
Dew Point 58° 60° 63° 64° 66° 67° 67° 66°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 76° 70° N/A 76°
Low 59° 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 20, 2014; 2:02 AM ET

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

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Sun. Overnight Freeze

Sun. Degree Days

Sun. Evapotranspiration