S
M
T
W
T
F
S
26
80°
62°
27
82°
60°
28
79°
58°
29
74°
59°
30
81°
61°
31
76°
56°
1
79°
60°
2
81°
56°
3
77°
52°
4
74°
53°
5
75°
57°
6
76°
54°
7
81°
56°
8
76°
52°
9
77°
54°
10
81°
60°
11
80°
53°
12
79°
55°
13
79°
62°
14
83°
61°
15
79°
54°
16
80°
50°
17
72°
50°
18
72°
51°
19
75°
52°
20
72°
51°
21
69°
54°
22
72°
58°
23
71°
60°
24
77°
57°
25
80°
50°
26
74°
47°
27
68°
48°
28
69°
47°
29
68°
52°
30
70°
57°
31
75°
58°
1
77°
57°
2
77°
53°
3
75°
48°
4
73°
54°
5
76°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Saint-Jérôme
Saint-Jérôme's August 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 46° and 62°. 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-Jérôme. See also: September | October | November.