• Tonight

    Jul 29

    Lo 68°

    Mainly clear, warm and humid

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Thu

    Jul 30

    90°Lo 67°

    A heavy t-storm in the p.m.

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Jul 31

    86°Lo 62°

    Sunny and less humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Aug 1

    86°Lo 62°

    Sun, some clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Aug 2

    85°Lo 62°

    Sunshine and patchy clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
9pm
10pm 11pm Thu
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
Clear
Clear
Clear
Clear
Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 81° 79° 76° 74° 73° 73° 71° 70°
RealFeel® 81° 80° 77° 74° 74° 73° 72° 71°
Humidity 56% 63% 69% 72% 77% 80% 80% 82%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
1%
 
1%
 
1%
 
1%
 
1%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 5 WSW 5 WSW 4 WSW 4 WSW 4 WSW 4 WSW 4 WSW 4 WSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 8% 3% 0% 0% 0% 26% 26% 26%
Dew Point 64° 66° 65° 65° 66° 66° 65° 64°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Jul 29

more Historical Weather Data >
  Today Normal Record 7/29/2014
High 87° 83° 97° (1949) 77°
Low 68° 60° 46° (1977) 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:34 AM with 14:37 of sunlight, then sets at 8:11 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:33 PM with 10:09 of moolight, then sets at 4:42 AM

Merrimack Weather Report

Boston: Dog Days of Summer in Store for Rest of Week

July 29, 2015; 8:14 PM ET

Typical hot and humid weather, known as the dog days of summer, is in store for the Boston area during much of this week. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps