Monthly Historical AveragesSt. Charles, ON
Average Temperature
High
19°
Feels 19
Low
7°
Feels 4
Average Precipitation
10 Days
73.8mm
0.9cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, May 19, 2026
Day
20°Feels 23
Wind
22 km/h S
Gust
33 km/h
Humidity
83%
P.O.P
90%
Rain
2-4 mm
Night
7°Feels 3
Wind
20 km/h SW
Gust
30 km/h
Humidity
94%
P.O.P
30%
Historical AveragesMay 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity