• Tonight

    Dec 21

    Lo 27°

    Mostly cloudy

    Driving Weather
    • Precip
      62%
    • Hours of Precip
      3.5
    • Snow
      0.07 in
    more
  • Mon

    Dec 22

    38°Lo 33°

    Mainly cloudy

    Excellent for driving
    • Precip
      25%
    • Hours of Precip
      2
    • Rain
      0.08 in
  • Tue

    Dec 23

    43°Lo 40°

    Rather cloudy and misty

    Very Good for driving
    • Precip
      58%
    • Hours of Precip
      6
    • Rain
      0.19 in
    more
  • Wed

    Dec 24

    58°Lo 55°

    Rain

    Poor for driving
    • Precip
      87%
    • Hours of Precip
      16
    • Rain
      1.36 in
    more
  • Thu

    Dec 25

    57°Lo 33°

    Morning rain; cloudy, windy

    Good for driving
    • Precip
      65%
    • Hours of Precip
      1.5
    • Rain
      0.10 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 30° 32° 34° 36° 36° 38° 37° 36°
RealFeel® 30° 33° 35° 37° 38° 38° 36° 35°
Humidity 82% 81% 80% 78% 79% 76% 83% 85%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
1%
 
5%
 
5%
 
6%
 
7%
Snow
 
7%
 
7%
 
7%
 
6%
 
2%
 
2%
 
2%
 
2%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 4 NNE 4 NNE 4 NNE 4 NNE 2 N 4 NE 4 NE 4 NE
UV Index 0 0 1 1 1 0 0 0
Cloud Cover 90% 90% 89% 89% 90% 90% 91% 91%
Dew Point 26° 27° 29° 29° 30° 31° 32° 32°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Dec 22

more Historical Weather Data >
  Today Normal Record 12/22/2013
High 38° 36° 64° (1949) 44°
Low 33° 17° -16° (1958) 32°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:14 AM with 9:01 of sunlight, then sets at 4:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:22 AM with 10:01 of moolight, then sets at 5:23 PM

Merrimack Weather Report

Boston: Christmas Eve Storm to Affect Holiday Travel This Week

December 21, 2014; 3:03 PM ET

Holiday travel will be at risk across the Boston area this week as a strong storm takes shape and blasts through the Northeast. more >

Travel Weather Forecast

Dec 21, 2014; 5:16 PM ET United States travel weather forecast

Mon. Travel Weather

48 Hour Precipitation Forecast

Mon. Driving Weather