S
M
T
W
T
F
S
30
88°
72°
31
92°
71°
1
94°
79°
2
95°
78°
3
96°
76°
4
96°
75°
5
89°
73°
6
84°
67°
7
84°
65°
8
83°
62°
9
88°
61°
10
92°
74°
11
96°
77°
12
90°
75°
13
89°
77°
14
91°
70°
15
83°
62°
16
82°
61°
17
88°
62°
18
94°
73°
19
86°
69°
20
88°
67°
21
92°
74°
22
87°
74°
23
76°
67°
24
70°
61°
25
68°
59°
26
73°
57°
27
75°
58°
28
79°
63°
29
80°
60°
30
83°
62°
1
83°
63°
2
84°
65°
3
82°
64°
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 68° to 84°, with overnight lows between 57° and 65°. The average high for September is 78° with an average low of 61°. 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.
