S
M
T
W
T
F
S
26
66°
59°
27
68°
56°
28
69°
57°
29
69°
59°
30
70°
59°
31
70°
56°
1
67°
56°
2
67°
55°
3
68°
56°
4
67°
59°
5
68°
57°
6
66°
58°
7
66°
58°
8
67°
57°
9
67°
57°
10
65°
54°
11
66°
55°
12
67°
55°
13
68°
54°
14
66°
55°
15
69°
57°
16
69°
58°
17
68°
57°
18
70°
55°
19
70°
58°
20
69°
59°
21
70°
58°
22
69°
58°
23
70°
57°
24
69°
58°
25
69°
58°
26
68°
57°
27
69°
57°
28
68°
56°
29
66°
54°
30
64°
55°
31
68°
53°
1
65°
54°
2
68°
53°
3
64°
53°
4
64°
52°
5
63°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St Stephens
St Stephens's August 2026 forecast shows daily high temperatures ranging from 63° to 70°, with overnight lows between 52° and 59°. The average high for August is 68° 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 Stephens. See also: September | October | November.