S
M
T
W
T
F
S
30
91°
69°
31
90°
68°
1
90°
68°
2
89°
66°
3
88°
66°
4
88°
67°
5
90°
68°
6
91°
69°
7
91°
67°
8
86°
65°
9
84°
64°
10
86°
66°
11
88°
67°
12
87°
68°
13
87°
65°
14
84°
68°
15
85°
62°
16
86°
63°
17
86°
63°
18
84°
62°
19
84°
64°
20
87°
66°
21
85°
61°
22
84°
60°
23
84°
60°
24
85°
61°
25
82°
62°
26
83°
60°
27
86°
58°
28
82°
57°
29
80°
59°
30
81°
62°
1
84°
62°
2
85°
64°
3
87°
65°
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 80° to 91°, with overnight lows between 57° and 69°. The average high for September is 86° with an average low of 64°. 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.
