S
M
T
W
T
F
S
30
80°
58°
31
84°
61°
1
84°
61°
2
83°
60°
3
84°
53°
4
78°
51°
5
76°
53°
6
76°
59°
7
82°
59°
8
82°
58°
9
78°
57°
10
75°
58°
11
80°
57°
12
78°
59°
13
81°
59°
14
80°
58°
15
81°
58°
16
81°
56°
17
77°
56°
18
79°
50°
19
74°
48°
20
72°
47°
21
69°
45°
22
69°
50°
23
71°
49°
24
70°
46°
25
68°
45°
26
68°
46°
27
73°
47°
28
74°
52°
29
74°
51°
30
74°
51°
1
68°
50°
2
68°
43°
3
67°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Castanea
Castanea's September 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 43° and 61°. The average high for September is 76° with an average low of 53°. 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 Castanea. See also: October | November | December.
