Monthly Historical AveragesBack Bay, MA
Average Temperature
High
20°
Feels 19
Low
10°
Feels 9
Average Precipitation
10 Days
64.7mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, May 19, 2026
Day
36°Feels 36
Wind
23 km/h SW
Gust
35 km/h
Humidity
29%
P.O.P
40%
Rain
<1 mm
Night
22°Feels 22
Wind
21 km/h SW
Gust
32 km/h
Humidity
73%
P.O.P
60%
Rain
~1 mm
Historical AveragesMay 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity