S
M
T
W
T
F
S
30
91°
73°
31
87°
69°
1
86°
65°
2
84°
62°
3
82°
63°
4
84°
64°
5
90°
62°
6
75°
65°
7
93°
72°
8
95°
73°
9
107°
77°
10
97°
76°
11
90°
74°
12
89°
70°
13
86°
72°
14
86°
68°
15
81°
66°
16
80°
68°
17
80°
64°
18
80°
62°
19
82°
62°
20
82°
68°
21
80°
68°
22
82°
64°
23
94°
67°
24
91°
67°
25
91°
67°
26
92°
66°
27
89°
66°
28
87°
67°
29
91°
67°
30
93°
68°
1
90°
66°
2
91°
67°
3
94°
68°
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 87° to 94°, with overnight lows between 66° and 68°. The average high for September is 91° 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.
