The Weather Network
Weather
Maps
News
Video
Assistant
|
Welcome
Historical
Forecasts
Current
Hourly
7 Days
14 Days
Historical
Historical Averages
Alton, ON
-19°
-4°
11°
26°
0
124
Historical Average
High °C
Feels
Low °C
Feels
Rain (mm)
Snow (cm)
More weather details below
Historical Monthly Averages in Alton
JUN
JUL
AUG
SEP
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
23
°
High
12
°
Low
23
11
Feels
11
Days of Precip
113
mm
Rain
0
cm
Snow
52
%
Cloud Cover
69
%
Humidity
12
km/h
Wind Speed
Historical Averages based on data recorded from 2000 to 2025.