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Hurricane season starts in 67 days. Here's what AccuWeather experts are saying about the forecast. Chevron right
Thursday severe weather threat predicted in 6 states. See the latest forecast. Chevron right

Merrimack, NH

63°F
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Merrimack

New Hampshire

63°
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Merrimack, NH Weather
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3 PM

66°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™62°

WindSW 12 mph

Air QualityFair

Max UV Index1.8 (Low)

Wind Gusts15 mph

Humidity42%

Indoor Humidity38% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling17100 ft

4 PM

66°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™62°

WindWSW 10 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts14 mph

Humidity43%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling15900 ft

5 PM

65°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™63°

WindWSW 9 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts12 mph

Humidity45%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling14700 ft

6 PM

64°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™63°

WindSW 8 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts10 mph

Humidity48%

Indoor Humidity42% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling12100 ft

7 PM

62°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 11%
Chevron down
Cloudy

RealFeel Shade™60°

WindSSW 7 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts9 mph

Humidity56%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling9600 ft

8 PM

65°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 68%
Chevron down
Rain

WindS 7 mph

Air QualityFair

Wind Gusts9 mph

Humidity54%

Indoor Humidity48% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility6 mi

Cloud Ceiling4000 ft

9 PM

62°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 73%
Chevron down
Rain

WindS 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity72%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.10 in

Visibility5 mi

Cloud Ceiling4000 ft

10 PM

59°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindSE 5 mph

Air QualityFair

Wind Gusts7 mph

Humidity77%

Indoor Humidity55% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility6 mi

Cloud Ceiling2000 ft

11 PM

57°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 79%
Chevron down
Rain

WindE 4 mph

Air QualityFair

Wind Gusts8 mph

Humidity80%

Indoor Humidity55% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility6 mi

Cloud Ceiling1100 ft

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World North America United States New Hampshire Merrimack

Weather Near Merrimack:

  • Boston, MA
  • Dorchester, MA
  • Worcester, MA
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