S
M
T
W
T
F
S
30
70°
62°
31
70°
60°
1
69°
61°
2
71°
63°
3
75°
64°
4
76°
64°
5
77°
63°
6
75°
64°
7
77°
53°
8
69°
63°
9
72°
55°
10
77°
50°
11
70°
56°
12
71°
62°
13
74°
50°
14
73°
48°
15
62°
49°
16
61°
51°
17
66°
53°
18
69°
57°
19
65°
55°
20
69°
57°
21
71°
56°
22
72°
60°
23
73°
58°
24
72°
57°
25
73°
57°
26
72°
46°
27
68°
44°
28
63°
44°
29
56°
46°
30
58°
45°
1
59°
48°
2
63°
47°
3
64°
51°
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 56° to 77°, with overnight lows between 44° and 64°. The average high for September is 69° with an average low of 55°. 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.
