S
M
T
W
T
F
S
30
82°
62°
31
82°
63°
1
83°
63°
2
82°
62°
3
81°
61°
4
81°
54°
5
79°
53°
6
80°
54°
7
85°
55°
8
85°
59°
9
86°
59°
10
83°
53°
11
78°
52°
12
79°
53°
13
81°
52°
14
79°
50°
15
76°
51°
16
75°
50°
17
76°
49°
18
77°
52°
19
81°
54°
20
79°
53°
21
83°
56°
22
82°
57°
23
83°
56°
24
80°
55°
25
79°
55°
26
79°
54°
27
78°
54°
28
80°
53°
29
81°
53°
30
80°
52°
1
80°
54°
2
81°
51°
3
80°
44°
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 86°, with overnight lows between 44° and 63°. The average high for September is 80° with an average low of 55°. 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.
