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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Chesley, ON
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August
Average Temperature
High
25°
Feels 26
Low
14°
Feels 13
Average Precipitation
13 Days
Rain amount
83.6mm
Snow amount
0cm
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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
19
20
24°
21
27°
22
24°
23
18°
24
17°
25
21°
26
23°
27
22°
28
21°
29
20°
30
20°
31
21°
Forecast
Thursday, August 20, 2026
Day
24°
Feels 26
Wind
19 km/h NW
Gust
29 km/h
Humidity
38%
P.O.P
20%
Night
11°
Feels 10
Wind
16 km/h SE
Gust
24 km/h
Humidity
88%
P.O.P
10%
Historical Averages
Aug 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.