S
M
T
W
T
F
S
30
56°
42°
31
69°
44°
1
61°
48°
2
57°
40°
3
53°
39°
4
59°
42°
5
54°
46°
6
61°
39°
7
53°
46°
8
70°
43°
9
72°
51°
10
60°
47°
11
58°
43°
12
60°
46°
13
48°
41°
14
46°
43°
15
50°
43°
16
64°
44°
17
71°
48°
18
63°
48°
19
69°
47°
20
73°
56°
21
70°
47°
22
57°
37°
23
59°
42°
24
65°
45°
25
49°
35°
26
55°
36°
27
52°
36°
28
57°
41°
29
54°
39°
30
53°
37°
1
53°
37°
2
56°
38°
3
52°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Crystal Mountain
Crystal Mountain's September 2026 forecast shows daily high temperatures ranging from 49° to 65°, with overnight lows between 35° and 45°. The average high for September is 55° with an average low of 38°. 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 Crystal Mountain. See also: October | November | December.
