• Sun

    Sep 4

    76°Lo 54°

    Mostly sunny and beautiful

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Mon

    Sep 5

    78°Lo 57°

    Plenty of sunshine

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

    Sep 6

    85°Lo 60°

    Plenty of sun

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

    Sep 7

    88°Lo 64°

    Rather cloudy and very warm

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

    Sep 8

    92°Lo 55°

    Cloudy, hot and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 76° RealFeel® 80° Precipitation 6%

Day

N

E

S

W

  • E 6 mph
  • Gusts: 9 mph

Mostly sunny and beautiful

  • Max UV Index: 6 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 54° RealFeel® 53° Precipitation 8%

Night

N

E

S

W

  • NNE 5 mph
  • Gusts: 7 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2015
High 76° 77° 95° (2010) 78°
Low 54° 54° 40° (1987) 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:15 AM with 12:59 of sunlight, then sets at 7:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:19 AM with 11:40 of moolight, then sets at 8:59 PM

Merrimack Weather Report

September to start on cooler, less humid note in northeastern US

August 31, 2016; 12:24 AM ET

Brief relief from heat and humidity will arrive in the northeastern United States during the first days of September. more >

Sun. Dust & Dander

Sun. Wind Maps