S
M
T
W
T
F
S
30
72°
56°
31
71°
52°
1
77°
53°
2
78°
50°
3
85°
52°
4
88°
56°
5
88°
53°
6
87°
54°
7
85°
56°
8
88°
51°
9
88°
48°
10
87°
44°
11
86°
48°
12
88°
51°
13
89°
57°
14
85°
60°
15
84°
53°
16
79°
56°
17
65°
59°
18
75°
56°
19
69°
53°
20
72°
47°
21
77°
44°
22
77°
46°
23
73°
55°
24
77°
47°
25
73°
51°
26
76°
46°
27
78°
47°
28
67°
55°
29
70°
52°
30
69°
43°
1
82°
50°
2
86°
52°
3
86°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Glenwood Springs
Glenwood Springs's September 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 43° and 52°. The average high for September is 81° with an average low of 49°. 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 Glenwood Springs. See also: October | November | December.
