Hourly Weather Forecast - Grantham, NH

12 AM
22°F
10%
11mph
WNW
Partly Cloudy
Humidity
76%
Feels like
11°F
Dew Point
16°F
1 AM
22°F
10%
11mph
WNW
Partly Cloudy
Humidity
76%
Feels like
10°F
Dew Point
15°F
2 AM
21°F
10%
11mph
WNW
Partly Cloudy
Humidity
76%
Feels like
9°F
Dew Point
14°F
3 AM
20°F
10%
11mph
WNW
Partly Cloudy
Humidity
75%
Feels like
9°F
Dew Point
14°F
4 AM
20°F
30%
11mph
NW
30% Chance Snow Showers
Humidity
75%
Feels like
8°F
Dew Point
13°F
5 AM
19°F
30%
11mph
NW
30% Chance Snow Showers
Humidity
74%
Feels like
7°F
Dew Point
12°F
6 AM
19°F
30%
11mph
NW
30% Chance Snow Showers
Humidity
74%
Feels like
6°F
Dew Point
12°F
7 AM
18°F
30%
11mph
NW
30% Chance Snow Showers
Humidity
72%
Feels like
6°F
Dew Point
11°F
7:18 AM
8 AM
19°F
30%
11mph
NW
30% Chance Snow Showers
Humidity
71%
Feels like
7°F
Dew Point
11°F
9 AM
21°F
30%
11mph
NW
30% Chance Snow Showers
Humidity
70%
Feels like
10°F
Dew Point
13°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

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