S
M
T
W
T
F
S
30
68°
37°
31
54°
36°
1
57°
30°
2
63°
40°
3
73°
47°
4
65°
45°
5
65°
37°
6
N/A
7
49°
37°
8
53°
36°
9
61°
46°
10
48°
34°
11
60°
40°
12
56°
38°
13
60°
39°
14
63°
44°
15
65°
45°
16
59°
37°
17
58°
34°
18
59°
38°
19
55°
35°
20
55°
40°
21
55°
38°
22
56°
41°
23
58°
41°
24
56°
39°
25
55°
37°
26
58°
42°
27
58°
40°
28
56°
37°
29
56°
38°
30
57°
38°
1
56°
41°
2
59°
37°
3
60°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cust
Cust's September 2026 forecast shows daily high temperatures ranging from 48° to 65°, with overnight lows between 34° and 46°. The average high for September is 57° with an average low of 39°. 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 Cust. See also: October | November | December.
