Monthly Historical AveragesCornwall, ON
Average Temperature
High
20°
Feels 20
Low
7°
Feels 6
Average Precipitation
13 Days
71.4mm
0.1cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, May 2, 2026
Day
10°Feels 9
Wind
14 km/h W
Gust
33 km/h
Humidity
51%
P.O.P
60%
Rain
~5 mm
Night
2°Feels 0
Wind
12 km/h W
Gust
26 km/h
Humidity
93%
P.O.P
30%
Historical AveragesMay 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity