S
M
T
W
T
F
S
30
71°
45°
31
72°
44°
1
72°
43°
2
70°
43°
3
70°
44°
4
69°
39°
5
68°
40°
6
68°
40°
7
69°
41°
8
69°
39°
9
67°
37°
10
66°
43°
11
68°
40°
12
73°
38°
13
71°
36°
14
64°
35°
15
63°
34°
16
64°
35°
17
65°
35°
18
70°
38°
19
71°
36°
20
71°
37°
21
70°
38°
22
71°
43°
23
72°
44°
24
72°
42°
25
70°
41°
26
66°
33°
27
60°
39°
28
65°
40°
29
64°
39°
30
60°
38°
1
59°
39°
2
60°
38°
3
61°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sundance
Sundance's September 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 31° and 45°. The average high for September is 67° with an average low of 39°. 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 Sundance. See also: October | November | December.
