S
M
T
W
T
F
S
30
77°
63°
31
75°
64°
1
82°
67°
2
81°
62°
3
75°
57°
4
73°
55°
5
71°
54°
6
74°
56°
7
73°
56°
8
75°
57°
9
74°
59°
10
76°
50°
11
71°
55°
12
72°
54°
13
74°
55°
14
74°
55°
15
75°
54°
16
74°
54°
17
70°
53°
18
74°
54°
19
72°
54°
20
72°
54°
21
71°
54°
22
73°
53°
23
73°
52°
24
67°
51°
25
61°
49°
26
63°
47°
27
68°
50°
28
70°
50°
29
70°
51°
30
71°
50°
1
71°
50°
2
70°
51°
3
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Castile
Castile's September 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 47° and 67°. The average high for September is 72° with an average low of 54°. 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 Castile. See also: October | November | December.
