Hourly Weather Forecast - Groton, CT

9 AM
39°F
0%
9mph
SW
Partly Cloudy
Humidity
78%
Feels like
33°F
Dew Point
32°F
10 AM
40°F
0%
10mph
SW
Partly Cloudy
Humidity
73%
Feels like
34°F
Dew Point
32°F
11 AM
41°F
0%
10mph
SW
Partly Cloudy
Humidity
73%
Feels like
35°F
Dew Point
33°F
12 PM
41°F
0%
11mph
SW
Partly Cloudy
Humidity
75%
Feels like
35°F
Dew Point
34°F
1 PM
41°F
0%
11mph
WSW
Partly Cloudy
Humidity
76%
Feels like
35°F
Dew Point
34°F
2 PM
41°F
0%
11mph
WSW
Partly Cloudy
Humidity
78%
Feels like
35°F
Dew Point
35°F
3 PM
40°F
0%
11mph
WSW
Mostly Sunny
Humidity
80%
Feels like
34°F
Dew Point
35°F
4 PM
40°F
0%
11mph
WSW
Sunny
Humidity
80%
Feels like
33°F
Dew Point
34°F
4:20 PM
5 PM
38°F
0%
10mph
WSW
Clear
Humidity
82%
Feels like
32°F
Dew Point
33°F
6 PM
38°F
0%
9mph
WSW
Clear
Humidity
82%
Feels like
31°F
Dew Point
33°F
7 PM
37°F
0%
8mph
W
Clear
Humidity
82%
Feels like
31°F
Dew Point
32°F
8 PM
37°F
0%
7mph
W
Mostly Clear
Humidity
81%
Feels like
31°F
Dew Point
31°F
9 PM
36°F
0%
6mph
W
Mostly Clear
Humidity
82%
Feels like
30°F
Dew Point
31°F
10 PM
35°F
0%
6mph
WNW
Mostly Clear
Humidity
83%
Feels like
30°F
Dew Point
31°F
11 PM
34°F
0%
5mph
WNW
Mostly Clear
Humidity
84%
Feels like
30°F
Dew Point
30°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

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