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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
Boston, 11
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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
31°
21
30°
22
29°
23
29°
24
30°
25
29°
26
29°
27
29°
28
30°
29
29°
30
29°
31
29°
Forecast
Wednesday, May 20, 2026
Day
31°
Feels 36
Wind
10 km/h E
Gust
14 km/h
Humidity
64%
P.O.P
10%
Night
25°
Feels 26
Wind
5 km/h SW
Gust
8 km/h
Humidity
90%
P.O.P
60%
Rain
~1 mm
Historical Averages
May 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
May
Average Temperature
High
29°
Feels 33
Low
24°
Feels 26
Average Precipitation
24 Days
Rain amount
223.1mm
Snow amount
0cm