S
M
T
W
T
F
S
30
91°
70°
31
90°
69°
1
90°
68°
2
91°
67°
3
91°
64°
4
90°
61°
5
83°
60°
6
84°
64°
7
87°
66°
8
90°
68°
9
89°
68°
10
90°
67°
11
88°
67°
12
87°
66°
13
87°
64°
14
88°
64°
15
89°
66°
16
88°
66°
17
Hist. Avg.
84°
60°
18
Hist. Avg.
84°
60°
19
Hist. Avg.
83°
60°
20
Hist. Avg.
83°
59°
21
Hist. Avg.
83°
59°
22
Hist. Avg.
82°
58°
23
Hist. Avg.
82°
58°
24
Hist. Avg.
82°
58°
25
Hist. Avg.
81°
57°
26
Hist. Avg.
81°
57°
27
Hist. Avg.
80°
56°
28
Hist. Avg.
80°
56°
29
Hist. Avg.
80°
56°
30
Hist. Avg.
79°
55°
1
Hist. Avg.
79°
55°
2
Hist. Avg.
79°
54°
3
Hist. Avg.
78°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Arcadia
Arcadia's September 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 60° and 70°. The average high for September is 89° with an average low of 66°. 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.
