• Today

    Sep 1

    90°Lo 65°

    A thunderstorm this afternoon

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

    Sep 2

    89°Lo 67°

    Times of clouds and sun

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

    Sep 3

    83°Lo 57°

    Sunny; less humid in the p.m.

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

    Sep 4

    84°Lo 60°

    Mostly sunny and warm

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      11%
  • Fri

    Sep 5

    88°Lo 66°

    Sunny and remaining warm

    Ragweed Pollen Weather
    • Precip
      13%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      10%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 66° 68° 73° 77° 79° 81° 82° 84°
RealFeel® 66° 71° 78° 82° 85° 86° 85° 85°
Humidity 70% 62% 55% 49% 44% 40% 38% 38%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 3 NW 3 NW 3 WNW 3 W 4 WSW 4 SW 4 SW 4 SW
UV Index 2 3 4 5 6 5 4 3
Cloud Cover 11% 11% 11% 11% 11% 11% 11% 11%
Dew Point 56° 55° 56° 56° 55° 55° 54° 56°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2013
High 84° 77° N/A 82°
Low 60° 57° N/A 60°

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 3:54 PM with 10:07 of moolight, then sets at 2:01 AM

Top Story

Londonderry Weather Report

Boston: Warmth to Hold Beyond Labor Day

September 1, 2014; 4:18 AM ET

Labor Day weekend traditionally marks the unofficial end to summer, but the weather has another idea in mind with summer warmth surging in around Boston. more >

Thu. Dust & Dander

Thu. Wind Maps