Hourly Weather Forecast - Merrimack, NH

12 AM
26°F
0%
9mph
WNW
Mostly Clear
Humidity
62%
Feels like
17°F
Dew Point
15°F
1 AM
25°F
10%
9mph
WNW
Clear
Humidity
61%
Feels like
16°F
Dew Point
14°F
2 AM
24°F
10%
9mph
WNW
Clear
Humidity
60%
Feels like
15°F
Dew Point
13°F
3 AM
23°F
0%
9mph
WNW
Clear
Humidity
60%
Feels like
14°F
Dew Point
12°F
4 AM
22°F
0%
9mph
NW
Clear
Humidity
62%
Feels like
13°F
Dew Point
11°F
5 AM
21°F
0%
8mph
NW
Clear
Humidity
62%
Feels like
11°F
Dew Point
10°F
6 AM
20°F
0%
8mph
NW
Clear
Humidity
63%
Feels like
11°F
Dew Point
10°F
7 AM
22°F
0%
8mph
NW
Clear
Humidity
59%
Feels like
12°F
Dew Point
10°F
7:14 AM
8 AM
24°F
0%
8mph
NW
Sunny
Humidity
63%
Feels like
15°F
Dew Point
13°F
9 AM
27°F
0%
8mph
NW
Sunny
Humidity
56%
Feels like
19°F
Dew Point
14°F
10 AM
29°F
0%
9mph
NW
Sunny
Humidity
51%
Feels like
21°F
Dew Point
14°F
11 AM
31°F
0%
9mph
NW
Sunny
Humidity
48%
Feels like
23°F
Dew Point
13°F
12 PM
32°F
0%
10mph
NW
Sunny
Humidity
44%
Feels like
24°F
Dew Point
13°F
1 PM
32°F
0%
10mph
NW
Sunny
Humidity
42%
Feels like
24°F
Dew Point
12°F
2 PM
32°F
0%
10mph
NW
Sunny
Humidity
44%
Feels like
23°F
Dew Point
12°F
3 PM
29°F
0%
10mph
NW
Sunny
Humidity
47%
Feels like
21°F
Dew Point
12°F
4 PM
27°F
10%
9mph
NW
Sunny
Humidity
53%
Feels like
18°F
Dew Point
12°F
4:15 PM
5 PM
25°F
10%
9mph
NW
Clear
Humidity
57%
Feels like
15°F
Dew Point
12°F
6 PM
23°F
10%
9mph
NW
Clear
Humidity
61%
Feels like
14°F
Dew Point
12°F
7 PM
22°F
10%
8mph
NW
Clear
Humidity
64%
Feels like
13°F
Dew Point
12°F
8 PM
22°F
10%
8mph
NW
Clear
Humidity
65%
Feels like
12°F
Dew Point
12°F
9 PM
21°F
10%
8mph
NW
Clear
Humidity
66%
Feels like
12°F
Dew Point
12°F
10 PM
20°F
10%
7mph
NW
Clear
Humidity
68%
Feels like
11°F
Dew Point
12°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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