S
M
T
W
T
F
S
30
91°
67°
31
89°
69°
1
91°
70°
2
94°
69°
3
95°
75°
4
95°
68°
5
92°
69°
6
86°
71°
7
92°
69°
8
89°
71°
9
82°
62°
10
84°
65°
11
86°
61°
12
74°
57°
13
69°
61°
14
82°
59°
15
65°
56°
16
65°
58°
17
74°
53°
18
69°
55°
19
73°
53°
20
73°
55°
21
71°
54°
22
69°
51°
23
75°
52°
24
79°
59°
25
80°
59°
26
79°
59°
27
79°
58°
28
76°
58°
29
78°
57°
30
76°
55°
1
66°
54°
2
76°
54°
3
75°
55°
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 65° to 86°, with overnight lows between 51° and 65°. The average high for September is 75° with an average low of 57°. 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.