Hourly Weather Forecast - Groton, CT

12 AM
28°F
0%
11mph
WNW
Partly Cloudy
Humidity
60%
Feels like
19°F
Dew Point
16°F
1 AM
28°F
0%
11mph
WNW
Mostly Clear
Humidity
62%
Feels like
18°F
Dew Point
16°F
2 AM
27°F
0%
11mph
WNW
Partly Cloudy
Humidity
61%
Feels like
17°F
Dew Point
15°F
3 AM
26°F
10%
11mph
WNW
Partly Cloudy
Humidity
61%
Feels like
15°F
Dew Point
14°F
4 AM
24°F
0%
10mph
NW
Partly Cloudy
Humidity
59%
Feels like
14°F
Dew Point
12°F
5 AM
23°F
0%
10mph
NW
Partly Cloudy
Humidity
57%
Feels like
13°F
Dew Point
10°F
6 AM
23°F
0%
10mph
NW
Mostly Clear
Humidity
55%
Feels like
12°F
Dew Point
9°F
7 AM
23°F
0%
10mph
NW
Clear
Humidity
51%
Feels like
13°F
Dew Point
8°F
7:11 AM
8 AM
24°F
0%
10mph
NW
Sunny
Humidity
49%
Feels like
14°F
Dew Point
8°F
9 AM
26°F
0%
10mph
NW
Sunny
Humidity
47%
Feels like
16°F
Dew Point
8°F
10 AM
28°F
0%
10mph
NW
Sunny
Humidity
44%
Feels like
18°F
Dew Point
8°F
11 AM
29°F
0%
10mph
NW
Sunny
Humidity
43%
Feels like
20°F
Dew Point
10°F
12 PM
30°F
0%
10mph
NW
Sunny
Humidity
44%
Feels like
21°F
Dew Point
11°F
1 PM
31°F
0%
10mph
NW
Sunny
Humidity
45%
Feels like
22°F
Dew Point
12°F
2 PM
31°F
0%
10mph
NW
Sunny
Humidity
47%
Feels like
22°F
Dew Point
13°F
3 PM
30°F
0%
9mph
NW
Sunny
Humidity
49%
Feels like
22°F
Dew Point
13°F
4 PM
29°F
0%
9mph
NW
Sunny
Humidity
51%
Feels like
21°F
Dew Point
13°F
4:22 PM
5 PM
28°F
0%
7mph
NW
Partly Cloudy
Humidity
53%
Feels like
21°F
Dew Point
14°F
6 PM
27°F
0%
7mph
NW
Mostly Cloudy
Humidity
55%
Feels like
20°F
Dew Point
13°F
7 PM
26°F
0%
6mph
NW
Cloudy
Humidity
53%
Feels like
19°F
Dew Point
12°F
8 PM
26°F
0%
7mph
NW
Cloudy
Humidity
69%
Feels like
18°F
Dew Point
17°F
9 PM
26°F
0%
6mph
NW
Mostly Cloudy
Humidity
72%
Feels like
18°F
Dew Point
18°F
10 PM
25°F
0%
6mph
WNW
Mostly Cloudy
Humidity
75%
Feels like
18°F
Dew Point
19°F
11 PM
25°F
0%
6mph
WNW
Mostly Cloudy
Humidity
75%
Feels like
19°F
Dew Point
19°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting 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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide