S
M
T
W
T
F
S
30
85°
64°
31
89°
65°
1
94°
75°
2
92°
73°
3
93°
73°
4
94°
72°
5
91°
70°
6
78°
56°
7
80°
59°
8
87°
67°
9
88°
68°
10
76°
53°
11
79°
57°
12
83°
60°
13
85°
60°
14
80°
59°
15
79°
54°
16
78°
53°
17
77°
55°
18
78°
52°
19
77°
51°
20
76°
57°
21
77°
56°
22
71°
56°
23
74°
55°
24
79°
56°
25
80°
56°
26
80°
55°
27
79°
56°
28
80°
56°
29
80°
55°
30
79°
56°
1
79°
52°
2
78°
45°
3
65°
41°
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 65° to 88°, with overnight lows between 41° and 68°. The average high for September is 79° with an average low of 56°. 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.
