Monthly Historical AveragesBryn Mawr, PA
Average Temperature
High
22°
Feels 22
Low
11°
Feels 10
Average Precipitation
12 Days
77.8mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, May 20, 2026
Day
23°Feels 23
Wind
18 km/h SW
Gust
24 km/h
Humidity
78%
P.O.P
90%
Rain
5-10 mm
Night
10°Feels 8
Wind
20 km/h N
Gust
27 km/h
Humidity
94%
P.O.P
90%
Rain
~5 mm
Historical AveragesMay 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity