S
M
T
W
T
F
S
26
82°
61°
27
82°
59°
28
81°
57°
29
80°
58°
30
76°
61°
31
78°
58°
1
80°
62°
2
74°
61°
3
80°
62°
4
79°
60°
5
78°
58°
6
75°
55°
7
74°
58°
8
74°
59°
9
75°
53°
10
73°
53°
11
74°
56°
12
78°
60°
13
82°
61°
14
81°
60°
15
79°
59°
16
78°
60°
17
77°
60°
18
73°
57°
19
73°
55°
20
76°
55°
21
72°
52°
22
71°
50°
23
71°
52°
24
72°
58°
25
74°
58°
26
76°
57°
27
78°
58°
28
73°
46°
29
80°
47°
30
79°
51°
31
78°
54°
1
79°
55°
2
80°
56°
3
80°
50°
4
76°
45°
5
77°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Stephen
St. Stephen's August 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 45° and 62°. The average high for August is 77° with an average low of 56°. 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 St. Stephen. See also: September | October | November.
