Hourly Weather Forecast - Groton, CT

12 AM
34°F
10%
6mph
W
Mostly Cloudy
Humidity
96%
Feels like
28°F
Dew Point
33°F
1 AM
33°F
10%
6mph
W
Mostly Cloudy
Humidity
95%
Feels like
28°F
Dew Point
32°F
2 AM
33°F
10%
7mph
WNW
Partly Cloudy
Humidity
94%
Feels like
27°F
Dew Point
32°F
3 AM
34°F
0%
7mph
WNW
Partly Cloudy
Humidity
92%
Feels like
27°F
Dew Point
31°F
4 AM
33°F
0%
8mph
WNW
Partly Cloudy
Humidity
90%
Feels like
27°F
Dew Point
31°F
5 AM
33°F
0%
8mph
NW
Partly Cloudy
Humidity
85%
Feels like
26°F
Dew Point
29°F
6 AM
33°F
0%
8mph
NW
Partly Cloudy
Humidity
82%
Feels like
25°F
Dew Point
28°F
7 AM
33°F
0%
8mph
NW
Partly Cloudy
Humidity
78%
Feels like
26°F
Dew Point
27°F
7:12 AM
8 AM
33°F
0%
9mph
NW
Partly Cloudy
Humidity
77%
Feels like
26°F
Dew Point
27°F
9 AM
35°F
0%
10mph
NW
Mostly Sunny
Humidity
74%
Feels like
28°F
Dew Point
28°F
10 AM
37°F
0%
10mph
NW
Mostly Sunny
Humidity
69%
Feels like
30°F
Dew Point
28°F
11 AM
38°F
0%
11mph
NW
Mostly Sunny
Humidity
65%
Feels like
32°F
Dew Point
28°F
12 PM
39°F
0%
11mph
NW
Partly Cloudy
Humidity
63%
Feels like
32°F
Dew Point
28°F
1 PM
39°F
0%
11mph
NW
Partly Cloudy
Humidity
62%
Feels like
32°F
Dew Point
27°F
2 PM
38°F
0%
10mph
NW
Partly Cloudy
Humidity
63%
Feels like
31°F
Dew Point
27°F
3 PM
37°F
0%
8mph
NW
Partly Cloudy
Humidity
66%
Feels like
30°F
Dew Point
26°F
4 PM
34°F
0%
6mph
NW
Partly Cloudy
Humidity
71%
Feels like
29°F
Dew Point
26°F
4:23 PM
5 PM
32°F
0%
5mph
NW
Mostly Clear
Humidity
77%
Feels like
27°F
Dew Point
26°F
6 PM
30°F
0%
4mph
NW
Mostly Clear
Humidity
80%
Feels like
25°F
Dew Point
24°F
7 PM
29°F
0%
4mph
NW
Clear
Humidity
74%
Feels like
24°F
Dew Point
21°F
8 PM
28°F
0%
3mph
NNW
Clear
Humidity
75%
Feels like
24°F
Dew Point
21°F
9 PM
28°F
0%
3mph
NNW
Mostly Clear
Humidity
76%
Feels like
28°F
Dew Point
21°F
10 PM
27°F
0%
2mph
NNW
Partly Cloudy
Humidity
79%
Feels like
27°F
Dew Point
21°F
11 PM
27°F
0%
2mph
NW
Partly Cloudy
Humidity
80%
Feels like
27°F
Dew Point
21°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide