Monthly Historical AveragesWilliamstown, ON
Average Temperature
High
24°
Feels 25
Low
13°
Feels 12
Average Precipitation
13 Days
96.5mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, June 16, 2026
Day
23°Feels 25
Wind
19 km/h SW
Gust
37 km/h
Humidity
48%
P.O.P
30%
Night
13°Feels 12
Wind
17 km/h S
Gust
30 km/h
Humidity
82%
P.O.P
20%
Historical AveragesJun 16
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity