S
M
T
W
T
F
S
26
76°
56°
27
77°
55°
28
75°
54°
29
76°
56°
30
76°
55°
31
77°
54°
1
78°
58°
2
80°
60°
3
75°
60°
4
76°
59°
5
77°
55°
6
77°
56°
7
78°
56°
8
79°
55°
9
77°
52°
10
75°
53°
11
78°
55°
12
81°
58°
13
75°
54°
14
73°
54°
15
75°
58°
16
74°
53°
17
74°
60°
18
81°
59°
19
81°
59°
20
82°
60°
21
82°
59°
22
81°
59°
23
80°
57°
24
80°
52°
25
74°
52°
26
70°
57°
27
72°
51°
28
71°
50°
29
72°
55°
30
75°
58°
31
76°
51°
1
76°
49°
2
70°
48°
3
Hist. Avg.
74°
51°
4
Hist. Avg.
74°
51°
5
Hist. Avg.
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Saint-Lambert
Saint-Lambert's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 48° and 60°. The average high for August is 76° 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-Lambert. See also: September | October | November.