Monthly Historical AveragesSouth Lyme, CT
Average Temperature
High
12°
Feels 11
Low
5°
Feels 3
Average Precipitation
10 Days
87.8mm
1.3cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, April 5, 2026
Day
12°Feels 9
Wind
33 km/h SW
Gust
50 km/h
Humidity
88%
P.O.P
100%
Rain
~10 mm
Night
5°Feels 0
Wind
29 km/h W
Gust
44 km/h
Humidity
100%
P.O.P
70%
Rain
<1 mm
Historical AveragesApr 5
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity