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Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Glastonbury, CT
Content continues below
May
Average Temperature
High
22°
Feels 22
Low
10°
Feels 9
Average Precipitation
12 Days
Rain amount
88.7mm
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
31°
18
27°
19
31°
20
30°
21
18°
22
18°
23
17°
24
19°
25
19°
26
20°
27
21°
28
22°
29
22°
30
22°
31
23°
Forecast
Sunday, May 17, 2026
Day
31°
Feels 31
Wind
17 km/h W
Gust
38 km/h
Humidity
38%
P.O.P
10%
Night
16°
Feels 16
Wind
15 km/h NE
Gust
23 km/h
Humidity
83%
P.O.P
20%
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.