S
M
T
W
T
F
S
30
86°
59°
31
85°
58°
1
84°
57°
2
85°
58°
3
84°
57°
4
82°
56°
5
79°
56°
6
81°
55°
7
81°
55°
8
72°
53°
9
75°
55°
10
73°
53°
11
81°
54°
12
81°
54°
13
72°
52°
14
72°
51°
15
74°
52°
16
73°
49°
17
77°
48°
18
69°
49°
19
70°
50°
20
73°
48°
21
76°
44°
22
70°
43°
23
68°
43°
24
68°
44°
25
69°
47°
26
76°
45°
27
71°
43°
28
67°
48°
29
75°
41°
30
73°
43°
1
69°
45°
2
73°
48°
3
73°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Columbine
Columbine's September 2026 forecast shows daily high temperatures ranging from 67° to 86°, with overnight lows between 41° and 59°. The average high for September is 75° with an average low of 50°. 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 Columbine. See also: October | November | December.