Hourly Weather Forecast - Groton, CT

12 AM
26°F
0%
2mph
NW
Partly Cloudy
Humidity
80%
Feels like
26°F
Dew Point
21°F
1 AM
26°F
0%
2mph
NW
Partly Cloudy
Humidity
80%
Feels like
26°F
Dew Point
20°F
2 AM
26°F
0%
2mph
WNW
Partly Cloudy
Humidity
80%
Feels like
26°F
Dew Point
20°F
3 AM
26°F
10%
2mph
WNW
Mostly Cloudy
Humidity
80%
Feels like
26°F
Dew Point
21°F
4 AM
26°F
10%
2mph
W
Cloudy
Humidity
81%
Feels like
26°F
Dew Point
21°F
5 AM
27°F
10%
2mph
WSW
Cloudy
Humidity
81%
Feels like
27°F
Dew Point
22°F
6 AM
27°F
10%
2mph
WSW
Cloudy
Humidity
82%
Feels like
27°F
Dew Point
23°F
7 AM
29°F
20%
3mph
SW
Cloudy
Humidity
80%
Feels like
29°F
Dew Point
23°F
7:12 AM
8 AM
31°F
30%
4mph
SW
30% Chance Frozen Mix
Humidity
79%
Feels like
28°F
Dew Point
25°F
9 AM
34°F
40%
4mph
SW
40% Chance of Light Rain
Humidity
77%
Feels like
30°F
Dew Point
27°F
10 AM
37°F
40%
5mph
SW
40% Chance of Light Rain
Humidity
75%
Feels like
32°F
Dew Point
29°F
11 AM
38°F
30%
6mph
SW
30% Chance of Light Rain
Humidity
78%
Feels like
34°F
Dew Point
32°F
12 PM
40°F
30%
6mph
SW
30% Chance of Light Rain
Humidity
83%
Feels like
35°F
Dew Point
35°F
1 PM
40°F
40%
7mph
SW
40% Chance of Light Rain
Humidity
84%
Feels like
36°F
Dew Point
36°F
2 PM
40°F
50%
6mph
SW
50% Chance of Light Rain
Humidity
86%
Feels like
36°F
Dew Point
37°F
3 PM
40°F
50%
6mph
SW
50% Chance of Light Rain
Humidity
89%
Feels like
36°F
Dew Point
37°F
4 PM
40°F
50%
5mph
SW
50% Chance of Light Rain
Humidity
89%
Feels like
37°F
Dew Point
37°F
4:24 PM
5 PM
40°F
40%
5mph
SW
40% Chance of Light Rain
Humidity
91%
Feels like
37°F
Dew Point
38°F
6 PM
40°F
40%
4mph
SW
40% Chance of Light Rain
Humidity
92%
Feels like
37°F
Dew Point
38°F
7 PM
40°F
30%
4mph
SW
30% Chance of Light Rain
Humidity
88%
Feels like
37°F
Dew Point
37°F
8 PM
39°F
20%
4mph
SW
Cloudy
Humidity
90%
Feels like
36°F
Dew Point
36°F
9 PM
38°F
20%
5mph
SW
Cloudy
Humidity
92%
Feels like
35°F
Dew Point
36°F
10 PM
38°F
20%
5mph
WSW
Cloudy
Humidity
93%
Feels like
34°F
Dew Point
36°F
11 PM
38°F
20%
5mph
WSW
Cloudy
Humidity
94%
Feels like
33°F
Dew Point
36°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

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