S
M
T
W
T
F
S
26
82°
55°
27
81°
56°
28
80°
58°
29
76°
56°
30
75°
57°
31
79°
58°
1
78°
56°
2
77°
55°
3
78°
55°
4
80°
57°
5
79°
55°
6
78°
59°
7
77°
59°
8
73°
58°
9
77°
59°
10
76°
58°
11
72°
55°
12
72°
54°
13
73°
58°
14
73°
58°
15
77°
57°
16
78°
58°
17
74°
58°
18
75°
57°
19
73°
58°
20
77°
57°
21
77°
52°
22
70°
50°
23
70°
53°
24
75°
56°
25
78°
55°
26
73°
54°
27
71°
50°
28
69°
49°
29
69°
51°
30
70°
52°
31
75°
55°
1
77°
55°
2
76°
54°
3
70°
52°
4
67°
45°
5
66°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Saint-Leonard
Saint-Leonard's August 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 42° and 59°. The average high for August is 75° with an average low of 55°. 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-Leonard. See also: September | October | November.
