Monthly Historical AveragesAlton, ON
Average Temperature
High
0°
Feels -4
Low
-6°
Feels -12
Average Precipitation
8 Days
22mm
18.4cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, December 28, 2025
Day
0°Feels -5
Wind
19 km/h SE
Gust
28 km/h
Humidity
93%
P.O.P
100%
Rain
10-15 mm
Night
0°Feels -9
Wind
34 km/h E
Gust
51 km/h
Humidity
100%
P.O.P
100%
Snow
<1 cm
Rain
~15 mm
Historical AveragesDec 28
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity