Monthly Historical AveragesWinchester, ON
Average Temperature
High
-1°
Feels -4
Low
-8°
Feels -13
Average Precipitation
7 Days
4.7mm
25.8cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, December 28, 2025
Day
-8°Feels -13
Wind
12 km/h NE
Gust
18 km/h
Humidity
67%
P.O.P
20%
Night
-9°Feels -16
Wind
22 km/h E
Gust
33 km/h
Humidity
86%
P.O.P
90%
Snow
~1 cm
Rain
~10 mm
Historical AveragesDec 28
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity