Hourly Weather Forecast - Grantham, NH

12 AM
26°F
10%
18mph
W
Mostly Cloudy
Humidity
63%
Feels like
12°F
Dew Point
15°F
1 AM
24°F
10%
18mph
W
Mostly Cloudy
Humidity
61%
Feels like
11°F
Dew Point
13°F
2 AM
23°F
10%
18mph
WNW
Mostly Cloudy
Humidity
59%
Feels like
9°F
Dew Point
11°F
3 AM
22°F
10%
18mph
WNW
Partly Cloudy
Humidity
58%
Feels like
7°F
Dew Point
9°F
4 AM
20°F
0%
17mph
WNW
Partly Cloudy
Humidity
58%
Feels like
5°F
Dew Point
8°F
5 AM
19°F
0%
17mph
WNW
Partly Cloudy
Humidity
57%
Feels like
4°F
Dew Point
6°F
6 AM
18°F
0%
15mph
WNW
Mostly Clear
Humidity
58%
Feels like
4°F
Dew Point
6°F
7 AM
18°F
0%
14mph
WNW
Clear
Humidity
56%
Feels like
4°F
Dew Point
5°F
7:17 AM
8 AM
18°F
0%
13mph
WNW
Sunny
Humidity
54%
Feels like
4°F
Dew Point
4°F
9 AM
19°F
0%
11mph
WNW
Sunny
Humidity
52%
Feels like
6°F
Dew Point
4°F
10 AM
20°F
0%
10mph
WNW
Sunny
Humidity
55%
Feels like
9°F
Dew Point
6°F
11 AM
21°F
10%
9mph
WNW
Mostly Sunny
Humidity
52%
Feels like
11°F
Dew Point
6°F
12 PM
23°F
10%
9mph
WNW
Partly Cloudy
Humidity
49%
Feels like
13°F
Dew Point
6°F
1 PM
24°F
10%
8mph
W
Mostly Cloudy
Humidity
47%
Feels like
15°F
Dew Point
7°F
2 PM
25°F
10%
7mph
W
Partly Cloudy
Humidity
47%
Feels like
17°F
Dew Point
8°F
3 PM
25°F
10%
7mph
W
Partly Cloudy
Humidity
48%
Feels like
17°F
Dew Point
8°F
4 PM
25°F
10%
6mph
WSW
Partly Cloudy
Humidity
50%
Feels like
18°F
Dew Point
9°F
4:14 PM
5 PM
25°F
10%
5mph
SW
Partly Cloudy
Humidity
53%
Feels like
18°F
Dew Point
10°F
6 PM
24°F
10%
5mph
SSW
Partly Cloudy
Humidity
59%
Feels like
18°F
Dew Point
12°F
7 PM
24°F
10%
5mph
S
Partly Cloudy
Humidity
65%
Feels like
17°F
Dew Point
14°F
8 PM
24°F
10%
6mph
S
Partly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
16°F
9 PM
26°F
10%
6mph
S
Mostly Cloudy
Humidity
68%
Feels like
18°F
Dew Point
16°F
10 PM
27°F
10%
6mph
S
Cloudy
Humidity
65%
Feels like
20°F
Dew Point
17°F
11 PM
27°F
10%
6mph
S
Cloudy
Humidity
67%
Feels like
20°F
Dew Point
18°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.

Tuesday'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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide