• Today

    Feb 10

    35°Lo 19°

    Cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Thu

    Feb 11

    27°Lo 7°

    A snow shower; windy, colder

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Feb 12

    24°Lo 11°

    Cold with clouds and sun

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

    Feb 13

    17°Lo -6°

    A snow squall in the morning

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Feb 14

    11°Lo -1°

    Frigid with clouds and sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Mostly cloudy 34° RealFeel® 33°

N

E

S

W

  • Humidity: 78%
  • Pressure: 29.60 in
  • UV Index: 0
  • Cloud Cover: 75%
  • Ceiling: 6253 ft
  • Dew Point: 28° F
  • Visibility: 10 mi
5 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:50 AM with 10:20 of sunlight, then sets at 5:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:56 AM with 11:58 of moolight, then sets at 7:54 PM

Temperature Summary - 5:58 PM

  Temp (°F)
Now 34°
Yesterday 41°
RealFeel® 33°
RealFeel® Shade 33°
Wind Chill 29°
Dew Point 28°
  Hi / Lo
Previous 6 Hours 35°
  28°
Previous 12 Hours 35°
  15°
Previous 24 Hours 35°
  15°

Temperature History - Feb 10

more Historical Weather Data >
  Today Normal Record 2/10/2015
High 35° 36° N/A 34°
Low 19° 18° N/A 15°

Precipitation Summary - 5:58 PM

  Amount (in)
Previous 1 Hour 0.01
Previous 3 Hours 0.03
Previous 6 Hours 0.04
Previous 9 Hours 0.04
Previous 12 Hours 0.04
Previous 18 Hours 0.04
Previous 24 Hours 0.04

Londonderry Weather Report

Boston: Polar vortex to smack region during Valentine's Day weekend

February 10, 2016; 5:08 PM ET

The coldest air of the winter and perhaps during all of last winter will plunge across the Boston area during Valentine's Day weekend. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps