• Today

    Sep 18

    71°Lo 39°

    Partly sunny

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

    Sep 19

    59°Lo 37°

    Mostly sunny and cooler

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

    Sep 20

    69°Lo 54°

    Warmer

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

    Sep 21

    78°Lo 57°

    Some sun, then clouds

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      60%
    more
  • Mon

    Sep 22

    69°Lo 44°

    Chance of a morning shower

    Ragweed Pollen Weather
    • Precip
      30%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      77%
Next Previous
Hi 69° RealFeel® 69° Precipitation 30%

Day

N

E

S

W

  • WNW 7 mph
  • Gusts: 12 mph

Chance of a shower in the morning; otherwise, mostly cloudy

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 15%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 44° RealFeel® 40° Precipitation 22%

Night

N

E

S

W

  • WNW 6 mph
  • Gusts: 9 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 22

more Historical Weather Data >
  Today Normal Record 9/22/2013
High 69° 70° N/A 70°
Low 44° 50° N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:32 AM with 12:11 of sunlight, then sets at 6:43 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:57 AM with 12:53 of moolight, then sets at 5:50 PM

Top Story

Londonderry Weather Report

Boston: Remainder of Week to Be Dry, Cool

September 18, 2014; 8:02 AM ET

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

Mon. Dust & Dander

Mon. Wind Maps