S
M
T
W
T
F
S
26
77°
59°
27
79°
56°
28
73°
59°
29
72°
58°
30
71°
55°
31
75°
58°
1
72°
55°
2
76°
60°
3
77°
59°
4
75°
60°
5
73°
56°
6
71°
53°
7
71°
53°
8
70°
54°
9
72°
56°
10
71°
51°
11
70°
52°
12
70°
51°
13
71°
58°
14
71°
56°
15
70°
51°
16
69°
50°
17
70°
55°
18
73°
58°
19
74°
58°
20
74°
57°
21
71°
55°
22
68°
54°
23
68°
55°
24
70°
52°
25
71°
54°
26
75°
48°
27
69°
46°
28
66°
46°
29
67°
47°
30
66°
45°
31
66°
46°
1
68°
53°
2
73°
54°
3
74°
54°
4
70°
55°
5
65°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Saint-Augustin-de-Desmaures
Saint-Augustin-de-Desmaures's August 2026 forecast shows daily high temperatures ranging from 65° to 79°, with overnight lows between 45° and 60°. The average high for August is 71° with an average low of 54°. 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 Saint-Augustin-de-Desmaures. See also: September | October | November.