S
M
T
W
T
F
S
30
71°
46°
31
69°
48°
1
72°
48°
2
78°
49°
3
82°
49°
4
80°
52°
5
76°
51°
6
68°
46°
7
70°
51°
8
71°
47°
9
66°
46°
10
65°
48°
11
66°
47°
12
65°
44°
13
65°
40°
14
66°
45°
15
69°
47°
16
66°
43°
17
68°
43°
18
66°
44°
19
70°
49°
20
71°
49°
21
67°
40°
22
62°
45°
23
61°
44°
24
62°
43°
25
62°
42°
26
60°
45°
27
61°
46°
28
60°
43°
29
58°
42°
30
60°
42°
1
63°
46°
2
65°
43°
3
57°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mountain Station
Mountain Station's September 2026 forecast shows daily high temperatures ranging from 57° to 82°, with overnight lows between 40° and 52°. The average high for September is 67° with an average low of 46°. 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 Mountain Station. See also: October | November | December.