• Early AM

    Sep 20

    Lo 37°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Today

    Sep 20

    70°Lo 59°

    Breezy with periods of sun

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

    Sep 21

    78°Lo 59°

    Variably cloudy and warmer

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

    Sep 22

    69°Lo 42°

    Clouds and sun; not as warm

    Low ragweed pollen levels
    • Precip
      15%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      48%
    more
  • Tue

    Sep 23

    68°Lo 44°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      12%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Clear 37° RealFeel® 42°

N

E

S

W

  • Humidity: 92%
  • Pressure: N/A
  • UV Index: 0
  • Cloud Cover: 0%
  • Ceiling: 38821 ft
  • Dew Point: 35° F
  • Visibility: 10 mi
0 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:30 AM with 12:17 of sunlight, then sets at 6:47 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:03 AM with 13:48 of moolight, then sets at 4:51 PM

Temperature Summary - 2:29 AM

  Temp (°F)
Now 37°
Yesterday 29°
RealFeel® 42°
RealFeel® Shade 42°
Wind Chill 37°
Dew Point 35°
  Hi / Lo
Previous 6 Hours 51°
  37°
Previous 12 Hours 59°
  37°
Previous 24 Hours 59°
  37°

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 70° 71° N/A 79°
Low 59° 51° N/A 51°

Precipitation Summary - 2:29 AM

  Amount (in)
Previous 1 Hour 0
Previous 3 Hours 0
Previous 6 Hours 0
Previous 9 Hours 0
Previous 12 Hours 0
Previous 18 Hours 0
Previous 24 Hours 0
Top Story

Londonderry Weather Report

Boston: September Temperature Roller Coaster to Continue

September 19, 2014; 11:02 AM ET

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

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps