• Today

    Sep 20

    72°Lo 61°

    Warmer with sun and clouds

    Excellent for biking
    • Precip
      0%
    • Hours of Precip
      0
    • Wind
      Gust
      17 mph
  • Sun

    Sep 21

    74°Lo 63°

    A couple of showers

    Very Good for biking
    • Precip
      62%
    • Hours of Precip
      2
    • Wind
      Gust
      13 mph
    more
  • Mon

    Sep 22

    75°Lo 50°

    Partly sunny and breezy

    Very Good for biking
    • Precip
      18%
    • Hours of Precip
      0
    • Wind
      Gust
      24 mph
    more
  • Tue

    Sep 23

    69°Lo 52°

    Partly sunny and nice

    Excellent for biking
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      11 mph
    more
  • Wed

    Sep 24

    65°Lo 47°

    Plenty of sun

    Excellent for biking
    • Precip
      5%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
5pm
6pm 7pm 8pm 9pm 10pm 11pm Sun
12am
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Clear
Clear
Clear
Clear
Partly Cloudy
Temp (°F) 71° 70° 67° 64° 63° 62° 62° 61°
RealFeel® 66° 65° 62° 58° 57° 57° 57° 57°
Humidity 57% 61% 67% 80% 84% 87% 90% 93%
   
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Rain
 
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0%
 
0%
 
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0%
 
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0%
Snow
 
0%
 
0%
 
0%
 
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Ice
 
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  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Wind (mph) 11 SSW 11 SSW 11 SSW 11 SSW 10 SSW 10 SSW 9 SSW 9 SSW
UV Index 1 0 0 0 0 0 0 0
Cloud Cover 69% 53% 42% 19% 5% 1% 4% 31%
Dew Point 55° 56° 56° 57° 58° 58° 59° 59°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 72° 71° 97° (1983) 71°
Low 61° 56° 42° (1979) 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 12:17 of sunlight, then sets at 6:46 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:03 AM with 13:46 of moolight, then sets at 4:49 PM

Top Story

Charlestown Weather Report

Boston: September Temperature Roller Coaster to Continue

September 20, 2014; 2:02 AM ET

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

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.