S
M
T
W
T
F
S
30
78°
59°
31
74°
59°
1
80°
58°
2
81°
54°
3
80°
49°
4
72°
52°
5
72°
58°
6
79°
52°
7
77°
49°
8
71°
50°
9
70°
54°
10
71°
56°
11
72°
55°
12
78°
56°
13
78°
54°
14
77°
48°
15
71°
46°
16
67°
50°
17
68°
46°
18
68°
45°
19
69°
42°
20
66°
42°
21
65°
45°
22
66°
50°
23
69°
43°
24
70°
50°
25
72°
51°
26
69°
50°
27
74°
51°
28
73°
46°
29
72°
44°
30
63°
45°
1
67°
46°
2
71°
47°
3
63°
38°
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 63° to 81°, with overnight lows between 38° and 59°. The average high for September is 72° with an average low of 50°. 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.