• Early AM

    Sep 4

    Lo 63°

    Partly to mostly cloudy

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

    Sep 4

    76°Lo 49°

    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

    81°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

    86°Lo 59°

    Very warm with plenty of sun

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

    Sep 7

    89°Lo 65°

    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
Next 8 hours >
  Fri
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Cloudy
T-storms
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Temp (°F) 71° 69° 68° 67° 65° 65° 63° 64°
RealFeel® 71° 65° 66° 64° 63° 63° 61° 62°
Humidity 75% 78% 76% 73% 74% 74% 75% 73%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
47%
 
51%
 
25%
 
20%
 
20%
 
20%
 
20%
 
13%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 1 N 2 N 4 N 5 N 6 NNE 8 NNE 8 NE 7 NE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 93% 65% 45% 45% 45% 45% 45% 45%
Dew Point 62° 62° 60° 58° 57° 57° 55° 55°
Middle Grid line 75 F 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 49° 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: Warmth to Rebuild Labor Day Weekend After Cooldown

September 3, 2015; 2:44 PM ET

A backdoor front will trim temperatures, haze and humidity around Boston into the first part of the Labor Day weekend before all three conditions build by early next week. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps