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December 25th, 2025 :: 10:54 pm EST   

Local Weather Report for
Merrimack
New Hampshire, United States

 Current Merrimack Weather Conditions Updated December 25th at 9:53 pm 
Temperature:18°F Dew Point:3°F
Barometer:30.06 inHg Wind:N 41 Mph
Humidity:49.3% Visibility:0M
 
 Merrimack Weather Forecast Summary  
 
Today
Dec 25th
Friday
Dec 26th
Saturday
Dec 27th
Sunday
Dec 28th
Monday
Dec 29th
Cloudy Cloudy Cloudy Cloudy Mix of rain and snow
37°F
21°F
10°F
25°F
17°F
35°F
17°F
41°F
24°F
 
 Merrimack Detailed Weather Forecast  
 
Friday, December 26th, 2025
Overnight Temperature: 11°F
Clear.
Morning Temperature: 18°F
Cloudy.
Afternoon Temperature: 18°F
Cloudy.
Evening Temperature: 18°F
Cloudy.
Saturday, December 27th, 2025
Overnight Temperature: 17°F
Cloudy with a chance of flurries.
Morning Temperature: 23°F
Cloudy.
Afternoon Temperature: 21°F
Cloudy.
Evening Temperature: 17°F
Clear.
Sunday, December 28th, 2025
Overnight Temperature: 18°F
Clear.
Morning Temperature: 32°F
Mostly sunny.
Afternoon Temperature: 26°F
Cloudy.
Evening Temperature: 26°F
Cloudy.
Monday, December 29th, 2025
Overnight Temperature: 31°F
Cloudy with a few flurries or freezing rain showers.
Morning Temperature: 35°F
Cloudy with showers likely. Showers possibly mixed with wet flurries.
Afternoon Temperature: 38°F
Cloudy. Windy at times.
Evening Temperature: 27°F
Clear with cloudy periods. Windy.
Tuesday, December 30th, 2025
Overnight Temperature: 23°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 27°F
Cloudy. Windy at times.
Afternoon Temperature: 24°F
Cloudy. Windy at times.
Evening Temperature: 20°F
Clear with cloudy periods. Windy at times.
Wednesday, December 31st, 2025
Overnight Temperature: 19°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 26°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 24°F
Mostly sunny.
Evening Temperature: 27°F
Cloudy. Windy at times.
Thursday, January 1st, 2026
Overnight Temperature: 28°F
Cloudy.
Morning Temperature: 34°F
Cloudy.
Afternoon Temperature: 33°F
Cloudy. Windy at times.
Evening Temperature: 34°F
Cloudy.
Friday, January 2nd, 2026
Overnight Temperature: 30°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 21°F
Sunny. Windy at times.
Afternoon Temperature: 15°F
Sunny. Windy at times.
Evening Temperature: 11°F
Clear. Windy at times.





 

  [ Local Weather Report ]
Litchfield, NH 
9:56 PM  19°F
 
 
Manchester, NH 
9:53 PM  18°F
 
 
Londonderry, NH 
9:53 PM  18°F
 
 
Nashua, NH 
9:56 PM  19°F
 
 
Amherst, NH 
 
Hudson, NH 
9:56 PM  19°F
 
 
Milford, NH 
 
Derry, NH 
9:53 PM  18°F
 
 
Mont Vernon, NH 
 
Hollis, NH 
9:56 PM  19°F
 

 
This WeatherCity Weather Forecast for Merrimack, New Hampshire, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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