Monthly Historical AveragesPerth South, ON
Average Temperature
High
-2°
Feels -7
Low
-10°
Feels -17
Average Precipitation
4 Days
1.5mm
12.7cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, January 8, 2026
Day
4°Feels -1
Wind
21 km/h S
Gust
33 km/h
Humidity
81%
P.O.P
30%
Night
4°Feels -1
Wind
36 km/h S
Gust
54 km/h
Humidity
93%
P.O.P
100%
Rain
~5 mm
Historical AveragesJan 8
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity