Merrimack, NH

Hourly

6 PM

93° 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 51% Mostly cloudy w/ showers

alerts Extreme Heat Warning 11:00 AM Wednesday - 8:00 PM Friday

• RealFeel Shade™: 89°
• Heat Index: 95°
• Wind: W 10 mph
• Air Quality: Fair
• Max UV Index: 2.1 (Low)
• Wind Gusts: 18 mph
• Humidity: 39%
• Indoor Humidity: 39% (Humid)
• Dew Point: 65° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 53%
• Rain: 0.01 in
• Visibility: 10 mi
• Cloud Ceiling: 34000 ft

7 PM

91° RealFeel® 102° 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 47% Intermittent clouds

alerts Extreme Heat Warning 11:00 AM Wednesday - 8:00 PM Friday

• RealFeel Shade™: 102°
• Heat Index: 106°
• Wind: W 9 mph
• Air Quality: Fair
• Max UV Index: 0.6 (Low)
• Wind Gusts: 17 mph
• Humidity: 65%
• Indoor Humidity: 65% (Dangerously Humid)
• Dew Point: 78° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 69%
• Visibility: 10 mi
• Cloud Ceiling: 4000 ft

8 PM

88° RealFeel® 90° 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 43% Mostly sunny

• RealFeel Shade™: 90°
• Heat Index: 92°
• Wind: W 8 mph
• Air Quality: Fair
• Max UV Index: 0.4 (Low)
• Wind Gusts: 14 mph
• Humidity: 53%
• Indoor Humidity: 53% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 3 (Dull)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 PM

85° RealFeel® 87° 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 47% Mostly clear

• Heat Index: 89°
• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 12 mph
• Humidity: 60%
• Indoor Humidity: 60% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

83° RealFeel® 83° 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 51% Partly cloudy w/ t-storms

• Heat Index: 87°
• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 8 mph
• Humidity: 65%
• Indoor Humidity: 65% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 25%
• Rain: 0.05 in
• Visibility: 6 mi
• Cloud Ceiling: 30000 ft

11 PM

81° RealFeel® 84° 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 40% Mostly clear

• Heat Index: 85°
• Wind: W 7 mph
• Air Quality: Fair
• Wind Gusts: 8 mph
• Humidity: 68%
• Indoor Humidity: 68% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft