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Monthly
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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Groton Long Point, CT
Content continues below
May
Average Temperature
High
17°
Feels 17
Low
10°
Feels 9
Average Precipitation
11 Days
Rain amount
75.5mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
15°
24
14°
25
18°
26
19°
27
23°
28
20°
29
18°
30
19°
31
20°
Forecast
Saturday, May 23, 2026
Day
15°
Feels 14
Wind
17 km/h E
Gust
31 km/h
Humidity
48%
P.O.P
60%
Rain
~1 mm
Night
11°
Feels 8
Wind
33 km/h E
Gust
50 km/h
Humidity
88%
P.O.P
90%
Rain
~15 mm
Historical Averages
May 23
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.