• Today

    Sep 21

    77°Lo 58°

    A.M. downpours, then a shower

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

    Sep 22

    68°Lo 42°

    Breezy with clouds and sun

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

    Sep 23

    69°Lo 44°

    Mostly sunny

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

    Sep 24

    68°Lo 41°

    Plenty of sun

    Low ragweed pollen levels
    • Precip
      3%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      0%
    more
  • Thu

    Sep 25

    71°Lo 47°

    Plenty of sun

    Ragweed Pollen Weather
    • Precip
      8%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      0%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
3pm
4pm 5pm 6pm 7pm 8pm 9pm 10pm
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Forecast
Showers
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Showers
Cloudy
Temp (°F) 77° 76° 75° 73° 71° 69° 67° 67°
RealFeel® 78° 77° 75° 73° 71° 69° 67° 66°
Humidity 71% 70% 73% 78% 85% 90% 93% 93%
   
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Rain
 
51%
 
47%
 
34%
 
34%
 
37%
 
47%
 
51%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Wind (mph) 5 SSW 5 SSW 4 SSW 3 S 2 S 1 ESE 2 SSE 2 SSW
UV Index 2 1 1 0 0 0 0 0
Cloud Cover 92% 96% 94% 92% 90% 98% 100% 100%
Dew Point 67° 66° 66° 66° 67° 66° 65° 65°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 77° 70° N/A 76°
Low 58° 50° N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 12:14 of sunlight, then sets at 6:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:00 AM with 13:21 of moolight, then sets at 5:21 PM

Top Story

Londonderry Weather Report

Boston: September Temperature Roller Coaster to Continue

September 21, 2014; 4:42 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Boston. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps