S
M
T
W
T
F
S
30
91°
58°
31
89°
57°
1
84°
61°
2
84°
61°
3
88°
57°
4
89°
62°
5
90°
62°
6
90°
56°
7
88°
55°
8
82°
54°
9
82°
55°
10
86°
57°
11
87°
57°
12
87°
56°
13
81°
53°
14
80°
59°
15
84°
58°
16
87°
52°
17
86°
51°
18
78°
49°
19
77°
50°
20
78°
56°
21
77°
56°
22
78°
50°
23
77°
53°
24
76°
50°
25
77°
54°
26
79°
55°
27
82°
51°
28
82°
47°
29
75°
52°
30
76°
52°
1
75°
53°
2
76°
51°
3
78°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Columbia
Columbia's September 2026 forecast shows daily high temperatures ranging from 75° to 91°, with overnight lows between 45° and 62°. The average high for September is 82° with an average low of 54°. 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. See also: October | November | December.
