S
M
T
W
T
F
S
30
96°
70°
31
98°
72°
1
97°
72°
2
96°
72°
3
98°
72°
4
98°
74°
5
94°
72°
6
99°
75°
7
97°
73°
8
96°
71°
9
93°
72°
10
93°
71°
11
94°
72°
12
91°
70°
13
93°
71°
14
90°
70°
15
92°
69°
16
94°
68°
17
92°
70°
18
87°
63°
19
88°
67°
20
89°
67°
21
90°
68°
22
89°
68°
23
90°
67°
24
89°
67°
25
89°
66°
26
88°
66°
27
88°
65°
28
87°
66°
29
87°
66°
30
86°
64°
1
82°
57°
2
75°
55°
3
76°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Arcadia
Arcadia's September 2026 forecast shows daily high temperatures ranging from 75° to 99°, with overnight lows between 54° and 75°. The average high for September is 90° with an average low of 67°. 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 Arcadia. See also: October | November | December.
