S
M
T
W
T
F
S
30
98°
76°
31
100°
72°
1
97°
76°
2
102°
78°
3
97°
77°
4
90°
78°
5
96°
75°
6
94°
77°
7
98°
76°
8
98°
76°
9
90°
76°
10
94°
74°
11
96°
77°
12
95°
76°
13
96°
75°
14
95°
74°
15
99°
70°
16
98°
71°
17
98°
72°
18
97°
69°
19
93°
64°
20
96°
69°
21
92°
69°
22
94°
67°
23
91°
63°
24
89°
68°
25
93°
68°
26
92°
67°
27
89°
67°
28
89°
66°
29
91°
67°
30
93°
67°
1
92°
66°
2
90°
65°
3
90°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Columbus
Columbus's September 2026 forecast shows daily high temperatures ranging from 89° to 99°, with overnight lows between 63° and 77°. The average high for September is 93° with an average low of 69°. 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 Columbus. See also: October | November | December.
