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Merrimack, MA

94°F
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Merrimack, MA Weather
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Today

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5 PM

89°
RealFeel® 93°
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 14%
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Intermittent clouds
alerts

Heat Advisory

11:00 AM Monday - 8:00 PM Wednesday

RealFeel Shade™90°

WindSE 7 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts10 mph

Humidity50%

Indoor Humidity50% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover66%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

87°
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 10%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Monday - 8:00 PM Wednesday

RealFeel Shade™89°

WindSE 7 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts8 mph

Humidity55%

Indoor Humidity55% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

84°
RealFeel® 88°
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 14%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Monday - 8:00 PM Wednesday

RealFeel Shade™88°

WindSSE 6 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts7 mph

Humidity59%

Indoor Humidity59% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

81°
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 51%
Chevron down
Partly sunny w/ t-storms

RealFeel Shade™82°

WindS 6 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts12 mph

Humidity72%

Indoor Humidity72% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover45%

Rain0.15 in

Visibility4 mi

Cloud Ceiling30000 ft

9 PM

78°
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 47%
Chevron down
Partly cloudy

WindSW 5 mph

Air QualityFair

Wind Gusts12 mph

Humidity77%

Indoor Humidity77% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

75°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 40%
Chevron down
Partly cloudy

WindW 5 mph

Air QualityFair

Wind Gusts13 mph

Humidity82%

Indoor Humidity82% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

72°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Partly cloudy

WindWNW 5 mph

Air QualityFair

Wind Gusts12 mph

Humidity86%

Indoor Humidity86% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

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Weather Near Merrimack:

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