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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Boston, CT
Content continues below
May
Average Temperature
High
21°
Feels 21
Low
10°
Feels 9
Average Precipitation
12 Days
Rain amount
86.3mm
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
33°
21
19°
22
17°
23
12°
24
14°
25
19°
26
23°
27
24°
28
23°
29
22°
30
23°
31
22°
Forecast
Wednesday, May 20, 2026
Day
33°
Feels 34
Wind
18 km/h W
Gust
27 km/h
Humidity
41%
P.O.P
40%
Rain
~1 mm
Night
13°
Feels 12
Wind
16 km/h N
Gust
24 km/h
Humidity
83%
P.O.P
80%
Rain
2-4 mm
Historical Averages
May 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.