S
M
T
W
T
F
S
30
66°
39°
31
67°
40°
1
68°
42°
2
65°
40°
3
69°
42°
4
71°
42°
5
67°
39°
6
66°
41°
7
69°
41°
8
70°
40°
9
70°
41°
10
65°
41°
11
72°
40°
12
72°
41°
13
71°
42°
14
70°
39°
15
71°
39°
16
68°
36°
17
60°
37°
18
65°
35°
19
66°
38°
20
67°
37°
21
69°
36°
22
68°
35°
23
68°
35°
24
67°
37°
25
68°
37°
26
68°
34°
27
60°
34°
28
57°
32°
29
65°
35°
30
66°
35°
1
66°
26°
2
60°
29°
3
55°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Vail
Vail's September 2026 forecast shows daily high temperatures ranging from 55° to 72°, with overnight lows between 26° and 42°. The average high for September is 67° with an average low of 37°. 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 Vail. See also: October | November | December.
