Monthly Historical AveragesCornwall, ON
Average Temperature
High
12°
Feels 11
Low
1°
Feels -2
Average Precipitation
11 Days
59.3mm
4cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, April 16, 2026
Day
15°Feels 15
Wind
11 km/h E
Gust
23 km/h
Humidity
87%
P.O.P
100%
Rain
~5 mm
Night
10°Feels 9
Wind
13 km/h N
Gust
23 km/h
Humidity
100%
P.O.P
90%
Rain
1-3 mm
Historical AveragesApr 16
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity