S
M
T
W
T
F
S
26
71°
56°
27
71°
56°
28
69°
57°
29
71°
56°
30
72°
57°
31
74°
57°
1
73°
55°
2
74°
54°
3
73°
54°
4
69°
53°
5
69°
52°
6
66°
52°
7
70°
56°
8
74°
57°
9
72°
57°
10
73°
58°
11
72°
58°
12
71°
57°
13
73°
58°
14
71°
59°
15
75°
53°
16
73°
56°
17
72°
51°
18
70°
51°
19
67°
50°
20
66°
51°
21
69°
54°
22
69°
56°
23
68°
51°
24
69°
56°
25
72°
55°
26
71°
53°
27
70°
54°
28
69°
49°
29
67°
50°
30
65°
54°
31
64°
50°
1
66°
49°
2
67°
48°
3
66°
54°
4
67°
52°
5
67°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Grand Bay
Grand Bay's August 2026 forecast shows daily high temperatures ranging from 64° to 75°, with overnight lows between 48° and 59°. The average high for August is 70° with an average low of 54°. 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 Grand Bay. See also: September | October | November.
