• Early AM

    Sep 3

    Lo 64°

    Mainly clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Sep 3

    88°Lo 63°

    A p.m. t-storm in spots

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

    Sep 4

    76°Lo 51°

    Mostly sunny and not as warm

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

    Sep 5

    82°Lo 53°

    Plenty of sunshine

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

    Sep 6

    87°Lo 58°

    Very warm with plenty of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Cloudy
Partly Cloudy
Temp (°F) 68° 67° 66° 65° 64° 63° 64° 65°
RealFeel® 66° 64° 63° 62° 61° 61° 63° 65°
Humidity 82% 81% 83% 84% 85% 86% 82% 75%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
25%
 
20%
 
20%
 
20%
 
20%
 
13%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 6 NNE 7 NE 8 NE 9 NE 9 NE 8 NE 7 NE 8 NE
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 45% 45% 45% 45% 45% 45% 72% 56%
Dew Point 62° 61° 61° 60° 59° 59° 58° 57°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 76° 77° N/A 84°
Low 51° 57° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:13 AM with 13:02 of sunlight, then sets at 7:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:17 PM with 14:44 of moolight, then sets at 2:01 PM

Londonderry Weather Report

Boston: Late-Week Front to Slash Summer Temperatures

September 3, 2015; 2:52 AM ET

The weather through Thursday will bring conditions more common for early July rather than early September, but the summer heat will come to an end by the weekend. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps