Monthly Historical AveragesPerth, ON
Average Temperature
High
-1°
Feels -4
Low
-9°
Feels -14
Average Precipitation
11 Days
23.2mm
33.6cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, December 24, 2025
Day
-2°Feels -6
Wind
24 km/h NW
Gust
46 km/h
Humidity
59%
P.O.P
30%
Night
-7°Feels -11
Wind
14 km/h SW
Gust
27 km/h
Humidity
93%
P.O.P
30%
Historical AveragesDec 24
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity