S
M
T
W
T
F
S
30
80°
60°
31
80°
59°
1
78°
60°
2
78°
63°
3
79°
65°
4
79°
60°
5
81°
59°
6
79°
61°
7
78°
58°
8
79°
57°
9
78°
60°
10
77°
62°
11
81°
57°
12
76°
56°
13
76°
55°
14
77°
56°
15
78°
61°
16
81°
60°
17
80°
55°
18
75°
53°
19
75°
55°
20
76°
59°
21
74°
54°
22
74°
55°
23
79°
57°
24
78°
58°
25
79°
59°
26
78°
51°
27
77°
51°
28
72°
50°
29
72°
49°
30
71°
49°
1
Hist. Avg.
75°
53°
2
Hist. Avg.
75°
52°
3
Hist. Avg.
75°
52°
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 71° to 81°, with overnight lows between 49° and 65°. The average high for September is 77° with an average low of 57°. 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.
