S
M
T
W
T
F
S
30
77°
61°
31
78°
64°
1
78°
64°
2
79°
63°
3
78°
56°
4
77°
54°
5
75°
55°
6
76°
55°
7
78°
56°
8
81°
59°
9
81°
62°
10
80°
54°
11
75°
54°
12
75°
58°
13
76°
52°
14
73°
52°
15
71°
53°
16
73°
51°
17
72°
53°
18
73°
51°
19
75°
50°
20
73°
54°
21
76°
52°
22
72°
57°
23
76°
57°
24
75°
56°
25
74°
56°
26
75°
55°
27
76°
56°
28
78°
55°
29
77°
54°
30
75°
55°
1
76°
55°
2
77°
48°
3
76°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fountain Square
Fountain Square's September 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 44° and 64°. The average high for September is 76° with an average low of 55°. 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 Fountain Square. See also: October | November | December.
