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  • Today

    Sep 18

    Times of sun and clouds 73°Lo 40°
  • Fri

    Sep 19

    Mostly sunny and cooler 58°Lo 37°
    more
  • Sat

    Sep 20

    Warmer 70°Lo 55°
    more
  • Sun

    Sep 21

    Some sun, then clouds 77°Lo 55°
    more
  • Mon

    Sep 22

    A morning shower possible 69°Lo 43°
    more
< Previous 8 hours Next 8 hours >
  Thu
10am
11am 12pm 1pm 2pm 3pm 4pm 5pm
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Forecast
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Sunny
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Sunny
Temp (°F) 62° 65° 69° 71° 71° 73° 71° 68°
RealFeel® 67° 68° 70° 78° 76° 76° 71° 67°
Humidity 58% 52% 47% 45% 42% 41% 43% 47%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Rain
 
0%
 
0%
 
0%
 
0%
 
7%
 
7%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Wind (mph) 0 4 NW 7 WNW 0 1 WNW 2 WNW 3 WNW 4 WNW
UV Index 2 3 4 5 4 3 2 1
Cloud Cover 46% 46% 70% 45% 45% 45% 69% 45%
Dew Point 47° 47° 48° 49° 47° 47° 47° 48°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 73° 72° 90° (1955) 75°
Low 40° 48° 30° (1950) 38°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 12:22 of sunlight, then sets at 6:51 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:13 AM with 14:32 of moolight, then sets at 3:45 PM

Top Story

Merrimack Weather Report

Boston: Remainder of Week to Be Dry, Cool

September 18, 2014; 12:02 PM ET

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