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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Harriston, ON
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Daily Historical Averages
August 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
25°
19
21°
20
21°
21
24°
22
25°
23
22°
24
21°
25
21°
26
22°
27
22°
28
22°
29
22°
30
22°
31
22°
Forecast
Tuesday, August 18, 2026
Day
25°
Feels 29
Wind
20 km/h W
Gust
30 km/h
Humidity
50%
P.O.P
20%
Night
17°
Feels 16
Wind
19 km/h SW
Gust
29 km/h
Humidity
94%
P.O.P
80%
Rain
~5 mm
Historical Averages
Aug 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
August
Average Temperature
High
24°
Feels 25
Low
13°
Feels 13
Average Precipitation
11 Days
Rain amount
70.9mm
Snow amount
0cm