S
M
T
W
T
F
S
30
90°
61°
31
91°
68°
1
93°
66°
2
95°
72°
3
95°
72°
4
95°
72°
5
93°
72°
6
82°
66°
7
82°
57°
8
90°
61°
9
93°
72°
10
79°
68°
11
82°
64°
12
82°
68°
13
84°
55°
14
77°
60°
15
93°
71°
16
95°
68°
17
90°
67°
18
86°
65°
19
86°
65°
20
76°
59°
21
77°
56°
22
75°
55°
23
75°
56°
24
76°
55°
25
77°
56°
26
80°
51°
27
79°
57°
28
79°
57°
29
79°
56°
30
78°
57°
1
78°
56°
2
77°
55°
3
78°
56°
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 75° to 95°, with overnight lows between 51° and 71°. The average high for September is 81° with an average low of 59°. 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.