• Today

    Aug 20

    82°Lo 56°

    Partly sunny

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

    Aug 21

    76°Lo 57°

    Clouds and sun; not as warm

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

    Aug 22

    74°Lo 57°

    Clouds and sun with a shower

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

    Aug 23

    74°Lo 56°

    Periods of sun with a shower

    Low ragweed pollen levels
    • Precip
      42%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      46%
    more
  • Sun

    Aug 24

    75°Lo 54°

    An afternoon shower in spots

    Ragweed Pollen Weather
    • Precip
      40%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      69%
    more
Next Previous
Colder 76° Lo 70° RealFeel® 79° / 66°

N

E

S

W

  • Precipitation: 25%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 56%
  • Cloud Cover: 70%
  • Dew Point: 57° F
  • Visibility: 10 mi
4 mph

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 76° 81° N/A 89°
Low 57° 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; 9:13 AM 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 >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps