Hourly Weather Forecast - Grantham, NH

9 AM
22°F
0%
4mph
WSW
Mostly Sunny
Humidity
74%
Feels like
17°F
Dew Point
15°F
10 AM
25°F
0%
4mph
WSW
Sunny
Humidity
72%
Feels like
19°F
Dew Point
17°F
11 AM
27°F
0%
5mph
WSW
Sunny
Humidity
67%
Feels like
21°F
Dew Point
17°F
12 PM
28°F
0%
5mph
WSW
Sunny
Humidity
64%
Feels like
23°F
Dew Point
17°F
1 PM
29°F
0%
5mph
WSW
Sunny
Humidity
62%
Feels like
23°F
Dew Point
17°F
2 PM
29°F
0%
5mph
SW
Mostly Sunny
Humidity
63%
Feels like
23°F
Dew Point
18°F
3 PM
27°F
0%
4mph
SW
Mostly Sunny
Humidity
66%
Feels like
22°F
Dew Point
17°F
4 PM
26°F
0%
4mph
SW
Partly Cloudy
Humidity
69%
Feels like
21°F
Dew Point
17°F
4:12 PM
5 PM
24°F
0%
4mph
SSW
Mostly Cloudy
Humidity
71%
Feels like
18°F
Dew Point
16°F
6 PM
22°F
0%
5mph
SSW
Mostly Cloudy
Humidity
74%
Feels like
16°F
Dew Point
15°F
7 PM
22°F
0%
5mph
SSW
Cloudy
Humidity
75%
Feels like
14°F
Dew Point
15°F
8 PM
21°F
0%
6mph
SSW
Mostly Cloudy
Humidity
77%
Feels like
14°F
Dew Point
15°F
9 PM
22°F
0%
6mph
SSW
Cloudy
Humidity
76%
Feels like
14°F
Dew Point
15°F
10 PM
23°F
0%
6mph
SSW
Cloudy
Humidity
73%
Feels like
15°F
Dew Point
15°F
11 PM
23°F
0%
6mph
SSW
Mostly Cloudy
Humidity
71%
Feels like
16°F
Dew Point
15°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday'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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