S
M
T
W
T
F
S
30
63°
50°
31
73°
43°
1
73°
46°
2
77°
41°
3
79°
43°
4
82°
37°
5
84°
41°
6
84°
45°
7
81°
46°
8
82°
41°
9
81°
36°
10
81°
32°
11
81°
32°
12
79°
39°
13
84°
37°
14
77°
52°
15
70°
52°
16
73°
52°
17
66°
51°
18
73°
48°
19
68°
43°
20
65°
36°
21
65°
40°
22
61°
38°
23
63°
37°
24
66°
43°
25
65°
42°
26
66°
41°
27
64°
40°
28
63°
31°
29
61°
34°
30
61°
33°
1
65°
35°
2
65°
36°
3
64°
34°
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 61° to 73°, with overnight lows between 31° and 52°. The average high for September is 65° with an average low of 40°. 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.
