S
M
T
W
T
F
S
30
74°
53°
31
73°
52°
1
74°
55°
2
74°
60°
3
75°
61°
4
82°
61°
5
82°
60°
6
81°
53°
7
80°
52°
8
74°
52°
9
73°
51°
10
72°
53°
11
72°
54°
12
71°
52°
13
75°
55°
14
76°
57°
15
76°
56°
16
70°
54°
17
72°
55°
18
74°
54°
19
75°
48°
20
72°
50°
21
72°
48°
22
75°
46°
23
68°
46°
24
67°
46°
25
67°
49°
26
68°
45°
27
67°
46°
28
66°
48°
29
64°
43°
30
65°
43°
1
64°
49°
2
71°
44°
3
70°
47°
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 64° to 82°, with overnight lows between 43° and 61°. The average high for September is 72° with an average low of 51°. 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.
