Monthly Historical AveragesHarriston, ON
Average Temperature
High
3°
Feels 0
Low
-6°
Feels -11
Average Precipitation
6 Days
20.2mm
12.5cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, March 22, 2026
Day
5°Feels 2
Wind
22 km/h N
Gust
33 km/h
Humidity
81%
P.O.P
80%
Rain
2-4 mm
Night
-2°Feels -9
Wind
24 km/h N
Gust
36 km/h
Humidity
87%
P.O.P
40%
Snow
<1 cm
Historical AveragesMar 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity