S
M
T
W
T
F
S
26
76°
58°
27
74°
58°
28
73°
57°
29
73°
56°
30
80°
57°
31
74°
55°
1
77°
58°
2
80°
54°
3
77°
51°
4
73°
50°
5
72°
57°
6
72°
55°
7
78°
55°
8
79°
49°
9
73°
50°
10
78°
56°
11
79°
48°
12
73°
48°
13
71°
57°
14
80°
57°
15
77°
49°
16
77°
47°
17
70°
47°
18
70°
48°
19
72°
48°
20
75°
49°
21
67°
48°
22
69°
54°
23
73°
52°
24
71°
48°
25
73°
45°
26
67°
44°
27
66°
45°
28
66°
44°
29
67°
47°
30
67°
52°
31
66°
54°
1
73°
53°
2
73°
47°
3
71°
43°
4
69°
49°
5
72°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Saint-Jean
Saint-Jean's August 2026 forecast shows daily high temperatures ranging from 66° to 80°, with overnight lows between 41° and 58°. The average high for August is 73° with an average low of 51°. 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-Jean. See also: September | October | November.
