• Early AM

    Sep 18

    Lo 44°

    Clear

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

    Sep 18

    70°Lo 40°

    Mostly sunny

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

    Sep 19

    59°Lo 40°

    Mostly sunny

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

    Sep 20

    71°Lo 55°

    Sunny to partly cloudy

    Low ragweed pollen levels
    • Precip
      14%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      25%
    more
  • Sun

    Sep 21

    77°Lo 58°

    Mostly cloudy and comfortable

    Ragweed Pollen Weather
    • Precip
      18%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      77%
    more
Next Previous
Hi 59° RealFeel® 65° Precipitation 7%

Day

N

E

S

W

  • SE 4 mph
  • Gusts: 7 mph

Mostly sunny

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 40° RealFeel® 39° Precipitation 13%

Night

N

E

S

W

  • S 3 mph
  • Gusts: 5 mph

Clear and chilly

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Londonderry Pollen Levels - September 19

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 19

more Historical Weather Data >
  Today Normal Record 9/19/2013
High 59° 71° N/A 78°
Low 40° 51° N/A 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 12:20 of sunlight, then sets at 6:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:07 AM with 14:12 of moolight, then sets at 4:19 PM

Top Story

Londonderry Weather Report

Boston: Remainder of Week to Be Dry, Cool

September 17, 2014; 7:15 AM ET

Rainfall will be scarce around Boston this week, but cool air will be plentiful. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps