• Today

    Aug 21

    74°Lo 59°

    A shower or two; not as warm

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Fri

    Aug 22

    71°Lo 57°

    A brief shower or two

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sat

    Aug 23

    75°Lo 54°

    Clouds and sun with a shower

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sun

    Aug 24

    78°Lo 53°

    Periods of clouds and sun

    Low ragweed pollen levels
    • Precip
      5%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      46%
    more
  • Mon

    Aug 25

    81°Lo 55°

    Pleasant with plenty of sun

    Ragweed Pollen Weather
    • Precip
      3%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      0%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
2pm
3pm 4pm 5pm 6pm 7pm 8pm 9pm
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Forecast
Showers
Showers
Mostly Cloudy
Showers
Partly Cloudy
Showers
Cloudy
Cloudy
Temp (°F) 73° 74° 72° 70° 69° 67° 65° 63°
RealFeel® 75° 74° 73° 68° 66° 63° 62° 62°
Humidity 55% 54% 58% 62% 68% 75% 79% 85%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Rain
 
61%
 
57%
 
49%
 
55%
 
49%
 
55%
 
25%
 
20%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Wind (mph) 3 NNW 3 NNW 3 N 3 N 3 NNE 3 NE 3 E 2 ENE
UV Index 3 3 2 1 1 0 0 0
Cloud Cover 93% 93% 79% 77% 73% 70% 70% 70%
Dew Point 56° 56° 57° 57° 58° 59° 59° 59°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 74° 81° N/A 89°
Low 59° 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

Boston: Showers to Retreat This Weekend

August 21, 2014; 1:10 PM ET

Following a surge of humidity and showers to end the week, dry and cooler air will push southward across the Boston areaa this weekend more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps