S
M
T
W
T
F
S
30
91°
73°
31
87°
69°
1
85°
62°
2
87°
62°
3
85°
63°
4
85°
65°
5
89°
68°
6
83°
70°
7
86°
71°
8
89°
68°
9
88°
67°
10
87°
66°
11
85°
67°
12
84°
65°
13
84°
65°
14
86°
66°
15
88°
64°
16
90°
68°
17
90°
67°
18
83°
62°
19
84°
63°
20
87°
65°
21
89°
66°
22
87°
66°
23
85°
67°
24
84°
64°
25
85°
66°
26
88°
67°
27
88°
67°
28
87°
66°
29
88°
65°
30
88°
66°
1
87°
65°
2
86°
65°
3
84°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in West Arcadia
West Arcadia's September 2026 forecast shows daily high temperatures ranging from 83° to 90°, with overnight lows between 62° and 71°. The average high for September is 86° 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 West Arcadia. See also: October | November | December.