Monthly Historical AveragesHarleysville, PA
Average Temperature
High
23°
Feels 23
Low
11°
Feels 11
Average Precipitation
11 Days
73.8mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, May 19, 2026
Day
34°Feels 34
Wind
20 km/h W
Gust
30 km/h
Humidity
34%
P.O.P
40%
Rain
<1 mm
Night
22°Feels 22
Wind
15 km/h SW
Gust
23 km/h
Humidity
69%
P.O.P
40%
Historical AveragesMay 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity