S
M
T
W
T
F
S
30
89°
72°
31
83°
70°
1
82°
66°
2
82°
63°
3
80°
64°
4
80°
63°
5
89°
62°
6
78°
69°
7
92°
74°
8
100°
75°
9
106°
80°
10
94°
79°
11
89°
73°
12
84°
72°
13
84°
65°
14
83°
65°
15
82°
66°
16
81°
66°
17
82°
66°
18
88°
67°
19
88°
68°
20
89°
68°
21
86°
67°
22
87°
66°
23
86°
65°
24
86°
64°
25
85°
65°
26
87°
64°
27
87°
65°
28
83°
60°
29
85°
63°
30
82°
63°
1
80°
62°
2
79°
63°
3
80°
63°
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 79° to 89°, with overnight lows between 60° and 68°. The average high for September is 84° with an average low of 65°. 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.