S
M
T
W
T
F
S
26
77°
52°
27
73°
51°
28
73°
50°
29
74°
53°
30
74°
54°
31
79°
52°
1
80°
58°
2
79°
56°
3
81°
60°
4
81°
57°
5
76°
50°
6
76°
58°
7
79°
58°
8
77°
55°
9
78°
58°
10
79°
60°
11
81°
58°
12
79°
50°
13
78°
55°
14
78°
52°
15
Hist. Avg.
75°
52°
16
Hist. Avg.
75°
52°
17
Hist. Avg.
75°
52°
18
Hist. Avg.
74°
51°
19
Hist. Avg.
74°
51°
20
Hist. Avg.
74°
51°
21
Hist. Avg.
74°
51°
22
Hist. Avg.
73°
50°
23
Hist. Avg.
73°
50°
24
Hist. Avg.
73°
50°
25
Hist. Avg.
73°
50°
26
Hist. Avg.
72°
49°
27
Hist. Avg.
72°
49°
28
Hist. Avg.
72°
49°
29
Hist. Avg.
71°
49°
30
Hist. Avg.
71°
48°
31
Hist. Avg.
71°
48°
1
Hist. Avg.
71°
48°
2
Hist. Avg.
70°
48°
3
Hist. Avg.
70°
47°
4
Hist. Avg.
70°
47°
5
Hist. Avg.
69°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Saint-Leonard
Saint-Leonard's August 2026 forecast shows daily high temperatures ranging from 73° to 81°, with overnight lows between 50° and 60°. The average high for August is 78° 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.