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Merrimack, NH

87°F
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Merrimack

New Hampshire

87°
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Merrimack, NH Weather
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Today

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 Daily Radar MinuteCast Monthly Air Quality Health & Activities

12 PM

88°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 1%
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Hazy sunshine
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Tuesday

RealFeel Shade™93°

WindWNW 5 mph

Air QualityFair

Max UV Index9 (Very High)

Wind Gusts6 mph

Humidity59%

Indoor Humidity59% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover38%

Visibility5 mi

Cloud Ceiling30000 ft

1 PM

89°
RealFeel® 104°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 1%
Chevron down
Hazy sunshine
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Tuesday

RealFeel Shade™93°

WindSSW 5 mph

Air QualityFair

Max UV Index10 (Very High)

Wind Gusts6 mph

Humidity55%

Indoor Humidity55% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility5 mi

Cloud Ceiling30000 ft

2 PM

90°
RealFeel® 104°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Tuesday

RealFeel Shade™94°

WindSSW 6 mph

Air QualityFair

Max UV Index9 (Very High)

Wind Gusts7 mph

Humidity52%

Indoor Humidity52% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility5 mi

Cloud Ceiling30000 ft

3 PM

91°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Tuesday

RealFeel Shade™94°

WindSSW 6 mph

Air QualityFair

Max UV Index7 (High)

Wind Gusts7 mph

Humidity50%

Indoor Humidity50% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover39%

Visibility5 mi

Cloud Ceiling30000 ft

4 PM

90°
RealFeel® 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Tuesday

RealFeel Shade™93°

WindS 6 mph

Air QualityFair

Max UV Index5 (Moderate)

Wind Gusts7 mph

Humidity52%

Indoor Humidity52% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover30%

Visibility5 mi

Cloud Ceiling30000 ft

5 PM

89°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Tuesday

RealFeel Shade™92°

WindS 6 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts7 mph

Humidity55%

Indoor Humidity55% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility5 mi

Cloud Ceiling30000 ft

6 PM

87°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Tuesday

RealFeel Shade™91°

WindS 6 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts7 mph

Humidity59%

Indoor Humidity59% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover24%

Visibility5 mi

Cloud Ceiling30000 ft

7 PM

85°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Tuesday

RealFeel Shade™89°

WindSSW 6 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts9 mph

Humidity64%

Indoor Humidity64% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover26%

Visibility5 mi

Cloud Ceiling30000 ft

8 PM

83°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny

RealFeel Shade™89°

WindSSW 5 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts10 mph

Humidity68%

Indoor Humidity68% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover41%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

80°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSSW 5 mph

Air QualityFair

Wind Gusts10 mph

Humidity77%

Indoor Humidity77% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover27%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

77°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSW 5 mph

Air QualityFair

Wind Gusts12 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover13%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

74°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindWSW 5 mph

Air QualityPoor

Wind Gusts12 mph

Humidity90%

Indoor Humidity90% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

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