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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Marathon, ON
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August
Average Temperature
High
18°
Feels 18
Low
12°
Feels 11
Average Precipitation
10 Days
Rain amount
56.3mm
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
21
22
23
24
25
19°
26
17°
27
18°
28
16°
29
18°
30
20°
31
20°
Forecast
Tuesday, August 25, 2026
Day
19°
Feels 19
Wind
15 km/h S
Gust
23 km/h
Humidity
64%
P.O.P
30%
Night
16°
Feels 15
Wind
22 km/h S
Gust
33 km/h
Humidity
100%
P.O.P
90%
Rain
5-10 mm
Historical Averages
Aug 25
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.