S
M
T
W
T
F
S
30
82°
63°
31
77°
61°
1
75°
55°
2
79°
54°
3
81°
57°
4
88°
57°
5
73°
61°
6
N/A
7
84°
62°
8
87°
61°
9
65°
51°
10
68°
51°
11
69°
53°
12
71°
53°
13
71°
56°
14
70°
58°
15
73°
58°
16
72°
54°
17
67°
53°
18
65°
47°
19
60°
46°
20
62°
47°
21
65°
48°
22
66°
47°
23
67°
50°
24
67°
50°
25
66°
49°
26
66°
51°
27
65°
48°
28
65°
51°
29
64°
50°
30
65°
48°
1
61°
44°
2
61°
46°
3
63°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Au
Au's September 2026 forecast shows daily high temperatures ranging from 60° to 87°, with overnight lows between 44° and 62°. The average high for September is 68° with an average low of 51°. 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 Au. See also: October | November | December.
