Hourly Weather Forecast - South Lyme, CT

12 PM
29°F
70%
6mph
NNW
70% Chance of Heavy Snow
Humidity
95%
Feels like
23°F
Dew Point
28°F
1 PM
29°F
70%
7mph
NNW
70% Chance of Heavy Snow
Humidity
87%
Feels like
22°F
Dew Point
26°F
2 PM
29°F
70%
8mph
NNW
70% Chance of Snow
Humidity
78%
Feels like
21°F
Dew Point
23°F
3 PM
29°F
10%
9mph
NNW
Mostly Cloudy
Humidity
71%
Feels like
21°F
Dew Point
21°F
4 PM
28°F
30%
9mph
NNW
30% Chance of Snow
Humidity
68%
Feels like
20°F
Dew Point
19°F
4:20 PM
5 PM
27°F
10%
9mph
NNW
Mostly Cloudy
Humidity
68%
Feels like
18°F
Dew Point
18°F
6 PM
26°F
30%
9mph
NNW
30% Chance of Snow
Humidity
67%
Feels like
17°F
Dew Point
17°F
7 PM
25°F
0%
9mph
NNW
Partly Cloudy
Humidity
67%
Feels like
15°F
Dew Point
15°F
8 PM
24°F
0%
10mph
NNW
Partly Cloudy
Humidity
67%
Feels like
14°F
Dew Point
14°F
9 PM
23°F
0%
10mph
NNW
Partly Cloudy
Humidity
66%
Feels like
12°F
Dew Point
13°F
10 PM
22°F
0%
10mph
NNW
Partly Cloudy
Humidity
63%
Feels like
11°F
Dew Point
11°F
11 PM
20°F
0%
10mph
NNW
Mostly Clear
Humidity
60%
Feels like
9°F
Dew Point
9°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Sunday 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 strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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