S
M
T
W
T
F
S
30
82°
61°
31
82°
64°
1
86°
64°
2
82°
56°
3
81°
54°
4
78°
55°
5
79°
55°
6
80°
56°
7
83°
56°
8
85°
62°
9
85°
61°
10
83°
54°
11
79°
57°
12
81°
60°
13
80°
52°
14
78°
52°
15
77°
50°
16
76°
51°
17
77°
55°
18
80°
54°
19
81°
58°
20
81°
57°
21
83°
57°
22
81°
56°
23
81°
57°
24
77°
57°
25
79°
56°
26
81°
56°
27
82°
55°
28
82°
55°
29
81°
54°
30
82°
55°
1
81°
55°
2
81°
46°
3
80°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Grand Tower
Grand Tower's September 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 45° and 64°. The average high for September is 81° 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 September weather will actually feel in Grand Tower. See also: October | November | December.
