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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Bryn Mawr, PA
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May
Average Temperature
High
22°
Feels 22
Low
11°
Feels 10
Average Precipitation
12 Days
Rain amount
77.8mm
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
23°
21
20°
22
18°
23
17°
24
22°
25
22°
26
23°
27
24°
28
24°
29
24°
30
23°
31
23°
Forecast
Wednesday, May 20, 2026
Day
23°
Feels 23
Wind
16 km/h SW
Gust
24 km/h
Humidity
82%
P.O.P
90%
Rain
5-10 mm
Night
10°
Feels 8
Wind
18 km/h N
Gust
27 km/h
Humidity
94%
P.O.P
90%
Rain
~5 mm
Historical Averages
May 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.