S
M
T
W
T
F
S
30
82°
59°
31
N/A
1
88°
70°
2
80°
69°
3
88°
70°
4
83°
62°
5
78°
58°
6
75°
57°
7
75°
58°
8
76°
59°
9
79°
62°
10
81°
63°
11
76°
58°
12
77°
55°
13
76°
56°
14
78°
60°
15
73°
60°
16
72°
59°
17
72°
53°
18
70°
51°
19
70°
51°
20
71°
54°
21
74°
58°
22
77°
58°
23
78°
59°
24
78°
57°
25
76°
55°
26
75°
56°
27
76°
57°
28
75°
56°
29
76°
55°
30
70°
52°
1
67°
49°
2
68°
54°
3
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Avondale
Avondale's September 2026 forecast shows daily high temperatures ranging from 67° to 88°, with overnight lows between 49° and 70°. The average high for September is 76° with an average low of 58°. 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 Avondale. See also: October | November | December.