S
M
T
W
T
F
S
30
69°
35°
31
71°
34°
1
72°
36°
2
71°
35°
3
72°
35°
4
65°
34°
5
71°
37°
6
71°
38°
7
70°
36°
8
69°
38°
9
66°
35°
10
67°
36°
11
62°
35°
12
67°
34°
13
66°
36°
14
68°
34°
15
70°
36°
16
66°
34°
17
Hist. Avg.
60°
30°
18
Hist. Avg.
60°
30°
19
Hist. Avg.
60°
30°
20
Hist. Avg.
59°
30°
21
Hist. Avg.
59°
30°
22
Hist. Avg.
59°
29°
23
Hist. Avg.
58°
29°
24
Hist. Avg.
58°
29°
25
Hist. Avg.
58°
28°
26
Hist. Avg.
57°
28°
27
Hist. Avg.
57°
28°
28
Hist. Avg.
56°
28°
29
Hist. Avg.
56°
28°
30
Hist. Avg.
56°
27°
1
Hist. Avg.
55°
27°
2
Hist. Avg.
55°
27°
3
Hist. Avg.
54°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Breckenridge
Breckenridge's September 2026 forecast shows daily high temperatures ranging from 62° to 72°, with overnight lows between 34° and 38°. The average high for September is 69° with an average low of 35°. 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 Breckenridge. See also: October | November | December.