S
M
T
W
T
F
S
30
81°
52°
31
71°
51°
1
71°
57°
2
74°
58°
3
70°
51°
4
72°
59°
5
78°
56°
6
77°
51°
7
71°
50°
8
69°
49°
9
68°
48°
10
68°
56°
11
73°
48°
12
68°
48°
13
67°
47°
14
69°
54°
15
72°
53°
16
73°
46°
17
72°
45°
18
64°
44°
19
63°
46°
20
63°
48°
21
62°
47°
22
61°
45°
23
62°
50°
24
64°
48°
25
65°
52°
26
69°
52°
27
69°
44°
28
66°
42°
29
60°
45°
30
61°
50°
1
60°
51°
2
63°
48°
3
66°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Castle Creek
Castle Creek's September 2026 forecast shows daily high temperatures ranging from 60° to 81°, with overnight lows between 42° and 59°. The average high for September is 68° with an average low of 50°. 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 Castle Creek. See also: October | November | December.
