Monthly Historical AveragesWinchester, ON
Average Temperature
High
20°
Feels 20
Low
8°
Feels 6
Average Precipitation
11 Days
53.5mm
0.1cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, May 9, 2026
Day
19°Feels 19
Wind
22 km/h S
Gust
33 km/h
Humidity
33%
P.O.P
30%
Night
9°Feels 6
Wind
26 km/h S
Gust
39 km/h
Humidity
94%
P.O.P
80%
Rain
1-3 mm
Historical AveragesMay 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity