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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Mattawa, ON
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August
Average Temperature
High
25°
Feels 25
Low
13°
Feels 12
Average Precipitation
14 Days
Rain amount
94.9mm
Snow amount
0cm
Content continues below
Daily Historical Averages
August 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
24°
13
23°
14
23°
15
23°
16
23°
17
23°
18
25°
19
23°
20
22°
21
22°
22
21°
23
21°
24
21°
25
21°
26
21°
27
28
29
30
31
Forecast
Wednesday, August 12, 2026
Day
24°
Feels 28
Wind
13 km/h W
Gust
20 km/h
Humidity
54%
P.O.P
40%
Rain
~1 mm
Night
14°
Feels 14
Wind
9 km/h W
Gust
14 km/h
Humidity
100%
P.O.P
40%
Rain
<1 mm
Historical Averages
Aug 12
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.