Monthly Historical AveragesMount St. Louis, ON
Average Temperature
High
-3°
Feels -7
Low
-12°
Feels -17
Average Precipitation
5 Days
3.2mm
13.8cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, January 18, 2026
Day
-6°Feels -11
Wind
20 km/h SW
Gust
31 km/h
Humidity
62%
P.O.P
30%
Night
-10°Feels -17
Wind
16 km/h S
Gust
24 km/h
Humidity
92%
P.O.P
60%
Snow
~1 cm
Historical AveragesJan 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity