• Tonight

    Aug 20

    Lo 55°

    Partly cloudy

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      9%
    • Hi
      RealFeel
      87°
    more
  • Thu

    Aug 21

    75°Lo 58°

    Clouds and sun; not as warm

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      78°
  • Fri

    Aug 22

    75°Lo 57°

    Clouds and sun with a shower

    Very Good for lawn mowing
    • Hours of Precip
      1.5
    • Precip
      40%
    • Hi
      RealFeel
      77°
    more
  • Sat

    Aug 23

    74°Lo 54°

    Periods of sun with a shower

    Very Good for lawn mowing
    • Hours of Precip
      1
    • Precip
      42%
    • Hi
      RealFeel
      76°
    more
  • Sun

    Aug 24

    76°Lo 52°

    An afternoon shower in spots

    Excellent for lawn mowing
    • Hours of Precip
      0.5
    • Precip
      40%
    • Hi
      RealFeel
      77°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
12pm
1pm 2pm 3pm 4pm 5pm 6pm 7pm
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 72° 74° 75° 75° 73° 72° 70° 68°
RealFeel® 77° 78° 78° 78° 74° 70° 67° 65°
Humidity 54% 51% 49% 49% 53% 58% 63% 70%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Rain
 
7%
 
7%
 
7%
 
7%
 
7%
 
7%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Wind (mph) 3 E 4 E 4 E 4 E 4 E 4 ESE 4 ESE 3 ESE
UV Index 4 4 4 3 2 1 1 0
Cloud Cover 70% 70% 70% 70% 70% 70% 70% 70%
Dew Point 55° 54° 54° 55° 55° 56° 57° 58°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 75° 81° N/A 89°
Low 58° 60° N/A 63°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:58 AM with 13:41 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:23 AM with 14:44 of moolight, then sets at 5:07 PM

Top Story

Londonderry Weather Report

Heavy Rain to Avoid Boston Through Weekend

August 20, 2014; 12:04 PM ET

A wedge of dry air will slowly erode later this week and may allow spotty showers to survive the trip into Boston from the Midwest. more >

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Thu. Overnight Freeze

Thu. Degree Days

Thu. Evapotranspiration