S
M
T
W
T
F
S
26
78°
59°
27
79°
53°
28
72°
53°
29
72°
57°
30
73°
54°
31
73°
50°
1
71°
49°
2
70°
50°
3
70°
49°
4
71°
49°
5
70°
50°
6
71°
50°
7
74°
55°
8
76°
54°
9
74°
58°
10
76°
51°
11
75°
57°
12
80°
57°
13
78°
56°
14
78°
49°
15
71°
48°
16
70°
54°
17
71°
47°
18
70°
46°
19
69°
50°
20
70°
49°
21
71°
50°
22
69°
48°
23
69°
52°
24
71°
54°
25
74°
46°
26
69°
57°
27
75°
54°
28
76°
53°
29
71°
50°
30
69°
47°
31
67°
46°
1
67°
45°
2
66°
54°
3
68°
50°
4
69°
44°
5
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rosseau
Rosseau's August 2026 forecast shows daily high temperatures ranging from 64° to 80°, with overnight lows between 44° and 59°. The average high for August is 72° with an average low of 51°. 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 Rosseau. See also: September | October | November.
