• Tonight

    Sep 17

    Lo 44°

    Clear and chilly

    Snow Days Weather
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Thu

    Sep 18

    70°Lo 40°

    Mostly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Fri

    Sep 19

    59°Lo 40°

    Mostly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sat

    Sep 20

    71°Lo 55°

    Sunny to partly cloudy

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sun

    Sep 21

    77°Lo 58°

    Mostly cloudy and comfortable

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 50° 48° 46° 46° 45° 47° 48° 54°
RealFeel® 50° 48° 46° 45° 45° 47° 49° 56°
Humidity 92% 93% 93% 93% 93% 93% 87% 74%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 1 NW 2 NNW 2 NNW 2 NNW 2 WSW 2 W 2 S 2 N
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 23% 21% 14% 20% 24% 26% 20% 14%
Dew Point 48° 46° 44° 43° 43° 45° 45° 45°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 69° 72° N/A 65°
Low 44° 52° N/A 40°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:27 AM with 12:25 of sunlight, then sets at 6:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:18 AM with 14:47 of moolight, then sets at 3:05 PM

Top Story

Londonderry Weather Report

Boston: Remainder of Week to Be Dry, Cool

September 17, 2014; 7:15 AM ET

Rainfall will be scarce around Boston this week, but cool air will be plentiful. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Wed. Snow Day Potential