Monthly Historical AveragesSouth Williamsport, PA
Average Temperature
High
22°
Feels 22
Low
10°
Feels 9
Average Precipitation
13 Days
97.2mm
0.1cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, May 22, 2026
Day
18°Feels 18
Wind
14 km/h NE
Gust
32 km/h
Humidity
47%
P.O.P
30%
Night
9°Feels 5
Wind
15 km/h SE
Gust
29 km/h
Humidity
93%
P.O.P
90%
Rain
~5 mm
Historical AveragesMay 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity