Monthly Historical AveragesWilliamsville, NY
Average Temperature
High
20°
Feels 20
Low
9°
Feels 8
Average Precipitation
12 Days
80.5mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, May 20, 2026
Day
16°Feels 15
Wind
15 km/h W
Gust
23 km/h
Humidity
63%
P.O.P
40%
Rain
<1 mm
Night
6°Feels 3
Wind
12 km/h N
Gust
18 km/h
Humidity
76%
P.O.P
20%
Historical AveragesMay 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity