S
M
T
W
T
F
S
30
73°
48°
31
72°
47°
1
72°
49°
2
73°
49°
3
72°
50°
4
69°
49°
5
72°
48°
6
71°
49°
7
69°
47°
8
70°
46°
9
68°
47°
10
70°
50°
11
68°
46°
12
68°
45°
13
71°
45°
14
71°
51°
15
72°
51°
16
72°
50°
17
71°
44°
18
72°
44°
19
73°
49°
20
73°
47°
21
70°
43°
22
67°
47°
23
68°
46°
24
65°
47°
25
66°
46°
26
67°
40°
27
68°
40°
28
61°
41°
29
60°
41°
30
61°
41°
1
61°
39°
2
Hist. Avg.
65°
45°
3
Hist. Avg.
64°
45°
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 60° to 73°, with overnight lows between 39° and 51°. The average high for September is 69° with an average low of 46°. 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.