S
M
T
W
T
F
S
30
84°
61°
31
86°
62°
1
86°
61°
2
85°
60°
3
83°
60°
4
80°
61°
5
83°
60°
6
85°
51°
7
80°
50°
8
73°
51°
9
74°
58°
10
73°
59°
11
78°
58°
12
77°
57°
13
82°
48°
14
77°
48°
15
70°
49°
16
69°
50°
17
69°
46°
18
70°
46°
19
75°
43°
20
69°
45°
21
69°
53°
22
71°
53°
23
78°
52°
24
77°
54°
25
77°
54°
26
78°
52°
27
79°
53°
28
75°
48°
29
71°
49°
30
72°
49°
1
73°
47°
2
75°
50°
3
76°
52°
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 69° to 86°, with overnight lows between 43° and 62°. The average high for September is 77° with an average low of 53°. 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.
