Hourly Weather Forecast - Merrimack, NH

1 PM
20°F
0%
10mph
NNW
Sunny
Humidity
49%
Feels like
9°F
Dew Point
4°F
2 PM
20°F
0%
9mph
NNW
Sunny
Humidity
50%
Feels like
9°F
Dew Point
4°F
3 PM
19°F
0%
8mph
NW
Mostly Sunny
Humidity
51%
Feels like
9°F
Dew Point
4°F
4 PM
17°F
0%
6mph
NW
Mostly Sunny
Humidity
53%
Feels like
8°F
Dew Point
3°F
4:11 PM
5 PM
15°F
0%
5mph
NW
Clear
Humidity
56%
Feels like
7°F
Dew Point
2°F
6 PM
14°F
0%
5mph
NW
Mostly Clear
Humidity
57%
Feels like
5°F
Dew Point
1°F
7 PM
13°F
0%
5mph
NW
Partly Cloudy
Humidity
62%
Feels like
4°F
Dew Point
2°F
8 PM
11°F
0%
5mph
NW
Partly Cloudy
Humidity
65%
Feels like
3°F
Dew Point
2°F
9 PM
11°F
0%
4mph
NW
Mostly Clear
Humidity
67%
Feels like
3°F
Dew Point
2°F
10 PM
10°F
0%
4mph
WNW
Mostly Clear
Humidity
67%
Feels like
2°F
Dew Point
1°F
11 PM
9°F
0%
4mph
WNW
Mostly Clear
Humidity
68%
Feels like
1°F
Dew Point
1°F

Snowfall forecast Through Tonight

Snow To Spread Across Appalachians Into Mid-Atlantic

A winter system will bring snow from the southern Appalachians to Mid-Atlantic through this evening.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

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People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

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Image courtesy of PeakPX.

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Today's National Outlook

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Snow & Ski Forecast

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