S
M
T
W
T
F
S
30
87°
68°
31
90°
69°
1
95°
70°
2
95°
71°
3
94°
71°
4
95°
69°
5
92°
70°
6
86°
67°
7
86°
66°
8
89°
67°
9
89°
67°
10
90°
68°
11
87°
68°
12
84°
63°
13
86°
64°
14
87°
67°
15
83°
67°
16
79°
66°
17
79°
65°
18
82°
65°
19
79°
64°
20
78°
61°
21
79°
58°
22
79°
60°
23
80°
59°
24
84°
64°
25
84°
63°
26
77°
62°
27
76°
63°
28
76°
62°
29
77°
61°
30
79°
61°
1
75°
60°
2
74°
60°
3
76°
59°
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 74° to 95°, with overnight lows between 58° and 71°. The average high for September is 84° with an average low of 65°. 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.
