S
M
T
W
T
F
S
30
90°
62°
31
93°
65°
1
95°
72°
2
95°
73°
3
96°
72°
4
96°
72°
5
101°
73°
6
96°
71°
7
89°
65°
8
97°
68°
9
94°
71°
10
79°
62°
11
82°
64°
12
87°
66°
13
88°
67°
14
90°
67°
15
81°
57°
16
76°
56°
17
75°
59°
18
71°
53°
19
70°
52°
20
75°
54°
21
76°
53°
22
79°
58°
23
80°
58°
24
81°
59°
25
81°
60°
26
80°
59°
27
81°
59°
28
80°
58°
29
80°
59°
30
79°
57°
1
77°
53°
2
66°
46°
3
66°
45°
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 66° to 97°, with overnight lows between 45° and 71°. The average high for September is 80° with an average low of 58°. 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.
