Hourly Weather Forecast - Old Lyme, CT

12 AM
29°F
0%
6mph
WSW
Mostly Clear
Humidity
74%
Feels like
23°F
Dew Point
22°F
1 AM
29°F
0%
6mph
SW
Mostly Clear
Humidity
74%
Feels like
23°F
Dew Point
22°F
2 AM
30°F
0%
6mph
SW
Mostly Clear
Humidity
75%
Feels like
23°F
Dew Point
22°F
3 AM
30°F
0%
7mph
SW
Mostly Clear
Humidity
74%
Feels like
23°F
Dew Point
23°F
4 AM
31°F
0%
7mph
SW
Mostly Clear
Humidity
73%
Feels like
24°F
Dew Point
23°F
5 AM
31°F
0%
7mph
SW
Mostly Clear
Humidity
74%
Feels like
25°F
Dew Point
24°F
6 AM
32°F
0%
7mph
SW
Mostly Clear
Humidity
74%
Feels like
26°F
Dew Point
25°F
7 AM
34°F
0%
7mph
SW
Mostly Clear
Humidity
73%
Feels like
28°F
Dew Point
27°F
7:09 AM
8 AM
37°F
0%
7mph
SW
Partly Cloudy
Humidity
71%
Feels like
31°F
Dew Point
28°F
9 AM
39°F
0%
7mph
SW
Mostly Cloudy
Humidity
69%
Feels like
34°F
Dew Point
30°F
10 AM
41°F
0%
8mph
SW
Cloudy
Humidity
69%
Feels like
36°F
Dew Point
31°F
11 AM
42°F
0%
8mph
SW
Cloudy
Humidity
72%
Feels like
37°F
Dew Point
33°F
12 PM
42°F
0%
8mph
SW
Mostly Cloudy
Humidity
73%
Feels like
37°F
Dew Point
34°F
1 PM
42°F
0%
8mph
WSW
Cloudy
Humidity
74%
Feels like
37°F
Dew Point
34°F
2 PM
42°F
0%
8mph
WSW
Mostly Cloudy
Humidity
75%
Feels like
37°F
Dew Point
35°F
3 PM
42°F
0%
8mph
WSW
Partly Cloudy
Humidity
75%
Feels like
37°F
Dew Point
34°F
4 PM
41°F
0%
7mph
WSW
Partly Cloudy
Humidity
77%
Feels like
36°F
Dew Point
34°F
4:21 PM
5 PM
40°F
0%
6mph
WSW
Partly Cloudy
Humidity
78%
Feels like
36°F
Dew Point
34°F
6 PM
39°F
0%
6mph
WSW
Partly Cloudy
Humidity
78%
Feels like
35°F
Dew Point
33°F
7 PM
38°F
0%
6mph
W
Partly Cloudy
Humidity
77%
Feels like
34°F
Dew Point
32°F
8 PM
38°F
0%
6mph
W
Partly Cloudy
Humidity
78%
Feels like
33°F
Dew Point
31°F
9 PM
37°F
0%
5mph
W
Mostly Clear
Humidity
79%
Feels like
33°F
Dew Point
31°F
10 PM
36°F
0%
4mph
W
Clear
Humidity
80%
Feels like
32°F
Dew Point
30°F
11 PM
35°F
0%
4mph
WNW
Clear
Humidity
81%
Feels like
32°F
Dew Point
30°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday'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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