S
M
T
W
T
F
S
30
98°
79°
31
85°
67°
1
92°
66°
2
92°
72°
3
91°
76°
4
94°
73°
5
95°
72°
6
96°
76°
7
95°
72°
8
96°
72°
9
98°
71°
10
96°
69°
11
93°
69°
12
92°
70°
13
93°
67°
14
90°
66°
15
89°
67°
16
91°
68°
17
92°
66°
18
94°
68°
19
92°
67°
20
91°
63°
21
85°
59°
22
86°
60°
23
86°
59°
24
87°
59°
25
88°
61°
26
92°
65°
27
89°
59°
28
82°
56°
29
83°
56°
30
84°
55°
1
82°
55°
2
82°
56°
3
83°
55°
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 82° to 98°, with overnight lows between 55° and 72°. The average high for September is 89° with an average low of 63°. 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.
