S
M
T
W
T
F
S
26
91°
66°
27
89°
68°
28
90°
67°
29
89°
68°
30
86°
70°
31
94°
71°
1
92°
70°
2
92°
71°
3
93°
72°
4
94°
71°
5
92°
70°
6
88°
68°
7
84°
64°
8
84°
64°
9
85°
66°
10
84°
66°
11
84°
65°
12
85°
68°
13
87°
69°
14
90°
69°
15
91°
68°
16
91°
69°
17
90°
69°
18
91°
70°
19
92°
69°
20
88°
68°
21
83°
68°
22
83°
67°
23
82°
67°
24
82°
66°
25
83°
67°
26
83°
66°
27
84°
67°
28
90°
64°
29
87°
58°
30
84°
57°
31
83°
58°
1
87°
62°
2
89°
64°
3
86°
61°
4
87°
59°
5
89°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Grand Tower
Grand Tower's August 2026 forecast shows daily high temperatures ranging from 82° to 94°, with overnight lows between 56° and 72°. The average high for August is 88° with an average low of 66°. 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 Tower. See also: September | October | November.