Hourly Weather Forecast - Merrimack, NH

12 AM
15°F
0%
3mph
SSW
Clear
Humidity
60%
Feels like
10°F
Dew Point
4°F
1 AM
16°F
0%
3mph
SSW
Clear
Humidity
59%
Feels like
11°F
Dew Point
4°F
2 AM
17°F
0%
3mph
SSW
Clear
Humidity
58%
Feels like
11°F
Dew Point
5°F
3 AM
17°F
0%
3mph
SSW
Clear
Humidity
60%
Feels like
11°F
Dew Point
5°F
4 AM
16°F
0%
4mph
S
Clear
Humidity
61%
Feels like
10°F
Dew Point
5°F
5 AM
15°F
0%
4mph
S
Clear
Humidity
64%
Feels like
9°F
Dew Point
5°F
6 AM
16°F
0%
4mph
S
Mostly Clear
Humidity
65%
Feels like
9°F
Dew Point
6°F
6:19 AM
7 AM
18°F
0%
4mph
SSW
Mostly Sunny
Humidity
66%
Feels like
12°F
Dew Point
8°F
8 AM
22°F
0%
5mph
SSW
Mostly Sunny
Humidity
67%
Feels like
16°F
Dew Point
13°F
9 AM
27°F
0%
6mph
SSW
Partly Cloudy
Humidity
64%
Feels like
21°F
Dew Point
16°F
10 AM
31°F
0%
6mph
SSW
Cloudy
Humidity
59%
Feels like
25°F
Dew Point
18°F
11 AM
33°F
0%
7mph
SSW
Cloudy
Humidity
55%
Feels like
27°F
Dew Point
19°F
12 PM
35°F
10%
7mph
SSW
Cloudy
Humidity
54%
Feels like
29°F
Dew Point
20°F
1 PM
37°F
40%
7mph
SSW
40% Chance Frozen Mix
Humidity
54%
Feels like
31°F
Dew Point
21°F
2 PM
37°F
60%
7mph
S
60% Chance Frozen Mix
Humidity
57%
Feels like
31°F
Dew Point
23°F
3 PM
36°F
80%
6mph
S
80% Chance Light Snow
Humidity
63%
Feels like
31°F
Dew Point
25°F
4 PM
35°F
90%
5mph
S
Heavy Snow
Humidity
71%
Feels like
31°F
Dew Point
26°F
5 PM
34°F
100%
4mph
SSE
Heavy Snow
Humidity
79%
Feels like
30°F
Dew Point
28°F
5:37 PM
6 PM
33°F
100%
4mph
SSE
Snow
Humidity
86%
Feels like
30°F
Dew Point
29°F
7 PM
33°F
100%
3mph
SE
Snow
Humidity
90%
Feels like
30°F
Dew Point
30°F
8 PM
33°F
90%
3mph
SE
Snow
Humidity
90%
Feels like
33°F
Dew Point
30°F
9 PM
32°F
90%
2mph
SE
Sleet
Humidity
92%
Feels like
32°F
Dew Point
30°F
10 PM
32°F
90%
2mph
SE
Snow
Humidity
93%
Feels like
32°F
Dew Point
30°F
11 PM
32°F
90%
2mph
W
Snow
Humidity
94%
Feels like
32°F
Dew Point
30°F

Snow and Ice Accumulations through Tuesday AM

Wintry Disturbance Bisects U.S. Mid-Latitudes

A wintry disturbance will bring icing and light snow from the central Plains tonight through the Northeast on Tuesday.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide