S
M
T
W
T
F
S
30
86°
59°
31
83°
69°
1
93°
70°
2
78°
70°
3
89°
69°
4
88°
70°
5
82°
73°
6
79°
58°
7
79°
56°
8
84°
63°
9
89°
73°
10
87°
62°
11
78°
55°
12
79°
59°
13
83°
63°
14
81°
57°
15
76°
56°
16
78°
56°
17
75°
58°
18
78°
56°
19
75°
55°
20
80°
57°
21
80°
59°
22
73°
58°
23
73°
58°
24
72°
57°
25
73°
57°
26
78°
56°
27
76°
54°
28
75°
56°
29
77°
57°
30
78°
56°
1
77°
56°
2
74°
55°
3
75°
53°
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 72° to 89°, with overnight lows between 53° and 73°. The average high for September is 78° with an average low of 58°. 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.
