Hourly Weather Forecast - Old Lyme, CT

12 AM
24°F
0%
4mph
W
Mostly Cloudy
Humidity
74%
Feels like
19°F
Dew Point
17°F
1 AM
24°F
0%
4mph
W
Partly Cloudy
Humidity
75%
Feels like
19°F
Dew Point
17°F
2 AM
23°F
0%
4mph
W
Partly Cloudy
Humidity
77%
Feels like
18°F
Dew Point
17°F
3 AM
23°F
0%
4mph
W
Partly Cloudy
Humidity
79%
Feels like
18°F
Dew Point
17°F
4 AM
22°F
0%
4mph
W
Mostly Cloudy
Humidity
78%
Feels like
17°F
Dew Point
17°F
5 AM
22°F
0%
4mph
W
Mostly Cloudy
Humidity
78%
Feels like
17°F
Dew Point
16°F
6 AM
22°F
0%
3mph
W
Partly Cloudy
Humidity
75%
Feels like
22°F
Dew Point
15°F
7 AM
23°F
0%
2mph
W
Mostly Clear
Humidity
73%
Feels like
23°F
Dew Point
16°F
7:08 AM
8 AM
25°F
0%
2mph
WNW
Sunny
Humidity
68%
Feels like
25°F
Dew Point
16°F
9 AM
28°F
0%
1mph
WNW
Mostly Sunny
Humidity
64%
Feels like
28°F
Dew Point
17°F
10 AM
30°F
0%
1mph
WNW
Sunny
Humidity
60%
Feels like
30°F
Dew Point
18°F
11 AM
32°F
0%
2mph
W
Sunny
Humidity
57%
Feels like
32°F
Dew Point
19°F
12 PM
33°F
0%
2mph
WSW
Sunny
Humidity
53%
Feels like
33°F
Dew Point
18°F
1 PM
34°F
0%
2mph
WSW
Sunny
Humidity
52%
Feels like
34°F
Dew Point
19°F
2 PM
34°F
0%
3mph
WSW
Sunny
Humidity
52%
Feels like
34°F
Dew Point
18°F
3 PM
33°F
0%
3mph
WSW
Sunny
Humidity
55%
Feels like
33°F
Dew Point
18°F
4 PM
31°F
0%
2mph
WSW
Sunny
Humidity
59%
Feels like
31°F
Dew Point
19°F
4:21 PM
5 PM
30°F
0%
3mph
WSW
Mostly Clear
Humidity
64%
Feels like
30°F
Dew Point
19°F
6 PM
29°F
0%
3mph
WSW
Mostly Clear
Humidity
66%
Feels like
26°F
Dew Point
20°F
7 PM
29°F
0%
3mph
SW
Partly Cloudy
Humidity
66%
Feels like
26°F
Dew Point
19°F
8 PM
29°F
0%
4mph
WSW
Partly Cloudy
Humidity
69%
Feels like
25°F
Dew Point
20°F
9 PM
29°F
0%
4mph
SW
Mostly Cloudy
Humidity
71%
Feels like
24°F
Dew Point
21°F
10 PM
29°F
0%
5mph
SW
Mostly Cloudy
Humidity
72%
Feels like
23°F
Dew Point
21°F
11 PM
29°F
0%
6mph
WSW
Partly Cloudy
Humidity
74%
Feels like
23°F
Dew Point
22°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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