Monthly Historical AveragesAlliston, ON
Average Temperature
High
20°
Feels 19
Low
6°
Feels 5
Average Precipitation
11 Days
73.4mm
0.1cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, May 27, 2026
Day
23°Feels 23
Wind
27 km/h N
Gust
35 km/h
Humidity
40%
P.O.P
20%
Night
11°Feels 10
Wind
25 km/h N
Gust
33 km/h
Humidity
82%
P.O.P
20%
Historical AveragesMay 27
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity