S
M
T
W
T
F
S
30
94°
70°
31
93°
71°
1
94°
68°
2
88°
67°
3
89°
66°
4
91°
69°
5
93°
69°
6
91°
68°
7
88°
66°
8
88°
66°
9
89°
65°
10
90°
65°
11
90°
66°
12
89°
65°
13
88°
64°
14
87°
63°
15
86°
64°
16
88°
63°
17
89°
65°
18
89°
67°
19
89°
65°
20
Hist. Avg.
85°
66°
21
Hist. Avg.
85°
66°
22
Hist. Avg.
85°
66°
23
Hist. Avg.
84°
66°
24
Hist. Avg.
84°
65°
25
Hist. Avg.
84°
65°
26
Hist. Avg.
84°
64°
27
Hist. Avg.
83°
64°
28
Hist. Avg.
83°
64°
29
Hist. Avg.
83°
63°
30
Hist. Avg.
82°
63°
1
Hist. Avg.
82°
63°
2
Hist. Avg.
82°
62°
3
Hist. Avg.
82°
62°
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 86° to 94°, with overnight lows between 63° and 71°. The average high for September is 90° with an average low of 66°. 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.
