S
M
T
W
T
F
S
26
75°
61°
27
74°
62°
28
73°
61°
29
73°
60°
30
74°
59°
31
77°
59°
1
72°
56°
2
76°
60°
3
80°
62°
4
80°
62°
5
72°
61°
6
72°
62°
7
73°
61°
8
73°
58°
9
74°
60°
10
76°
62°
11
76°
62°
12
72°
60°
13
75°
61°
14
74°
60°
15
73°
56°
16
70°
54°
17
70°
53°
18
68°
52°
19
69°
52°
20
70°
55°
21
69°
52°
22
68°
53°
23
69°
53°
24
70°
57°
25
74°
59°
26
75°
58°
27
75°
59°
28
68°
57°
29
75°
53°
30
76°
49°
31
75°
54°
1
75°
56°
2
76°
57°
3
75°
56°
4
76°
57°
5
76°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Trois-Rivières
Trois-Rivières's August 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 49° and 62°. The average high for August is 73° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Trois-Rivières. See also: September | October | November.
