S
M
T
W
T
F
S
30
82°
65°
31
87°
70°
1
90°
71°
2
92°
71°
3
92°
73°
4
90°
70°
5
83°
68°
6
77°
60°
7
78°
57°
8
84°
57°
9
84°
66°
10
79°
53°
11
79°
58°
12
82°
62°
13
82°
65°
14
86°
67°
15
79°
58°
16
75°
55°
17
78°
56°
18
73°
56°
19
67°
50°
20
68°
49°
21
69°
50°
22
68°
50°
23
71°
56°
24
77°
56°
25
70°
54°
26
76°
55°
27
76°
55°
28
75°
54°
29
75°
55°
30
74°
53°
1
74°
50°
2
68°
52°
3
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Columbia City
Columbia City's September 2026 forecast shows daily high temperatures ranging from 67° to 86°, with overnight lows between 49° and 67°. The average high for September is 75° with an average low of 56°. 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 Columbia City. See also: October | November | December.