S
M
T
W
T
F
S
30
77°
55°
31
80°
59°
1
83°
52°
2
80°
53°
3
76°
52°
4
77°
53°
5
77°
60°
6
81°
59°
7
83°
58°
8
76°
58°
9
74°
59°
10
77°
58°
11
77°
55°
12
78°
57°
13
75°
56°
14
73°
50°
15
72°
50°
16
72°
48°
17
71°
50°
18
71°
55°
19
76°
55°
20
75°
56°
21
76°
52°
22
71°
47°
23
70°
53°
24
69°
54°
25
75°
47°
26
73°
45°
27
Hist. Avg.
70°
45°
28
Hist. Avg.
70°
45°
29
Hist. Avg.
70°
45°
30
Hist. Avg.
69°
44°
1
Hist. Avg.
69°
44°
2
Hist. Avg.
68°
44°
3
Hist. Avg.
68°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Columbia
Columbia's September 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 45° and 60°. The average high for September is 76° 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.
