Hourly Weather Forecast - Old Lyme, CT

1 PM
25°F
0%
9mph
WNW
Sunny
Humidity
55%
Feels like
16°F
Dew Point
11°F
2 PM
26°F
0%
8mph
WNW
Mostly Sunny
Humidity
55%
Feels like
17°F
Dew Point
12°F
3 PM
26°F
0%
7mph
WNW
Mostly Sunny
Humidity
55%
Feels like
18°F
Dew Point
12°F
4 PM
25°F
0%
6mph
WNW
Partly Cloudy
Humidity
56%
Feels like
18°F
Dew Point
12°F
4:20 PM
5 PM
25°F
0%
5mph
WNW
Partly Cloudy
Humidity
58%
Feels like
19°F
Dew Point
12°F
6 PM
25°F
10%
4mph
W
Partly Cloudy
Humidity
59%
Feels like
20°F
Dew Point
13°F
7 PM
25°F
0%
3mph
W
Mostly Cloudy
Humidity
63%
Feels like
21°F
Dew Point
14°F
8 PM
25°F
0%
3mph
W
Mostly Cloudy
Humidity
66%
Feels like
21°F
Dew Point
15°F
9 PM
25°F
0%
3mph
W
Mostly Cloudy
Humidity
70%
Feels like
21°F
Dew Point
16°F
10 PM
25°F
0%
4mph
W
Mostly Cloudy
Humidity
72%
Feels like
20°F
Dew Point
17°F
11 PM
24°F
0%
4mph
W
Partly Cloudy
Humidity
74%
Feels like
20°F
Dew Point
17°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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