S
M
T
W
T
F
S
30
86°
68°
31
88°
67°
1
89°
65°
2
84°
61°
3
84°
62°
4
85°
65°
5
85°
64°
6
86°
66°
7
87°
63°
8
85°
62°
9
85°
59°
10
84°
60°
11
84°
61°
12
87°
64°
13
86°
61°
14
87°
60°
15
85°
67°
16
85°
67°
17
82°
66°
18
82°
67°
19
83°
67°
20
82°
66°
21
83°
66°
22
86°
65°
23
86°
67°
24
87°
67°
25
89°
66°
26
89°
65°
27
88°
63°
28
86°
62°
29
86°
64°
30
85°
65°
1
87°
66°
2
89°
65°
3
88°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Anaheim
Anaheim's September 2026 forecast shows daily high temperatures ranging from 82° to 89°, with overnight lows between 59° and 68°. The average high for September is 86° with an average low of 64°. 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 Anaheim. See also: October | November | December.