S
M
T
W
T
F
S
30
94°
59°
31
94°
56°
1
92°
55°
2
90°
57°
3
90°
60°
4
94°
60°
5
95°
56°
6
93°
57°
7
92°
55°
8
88°
54°
9
91°
51°
10
84°
53°
11
88°
54°
12
90°
56°
13
91°
56°
14
88°
57°
15
91°
56°
16
89°
46°
17
89°
45°
18
80°
44°
19
79°
45°
20
80°
46°
21
81°
50°
22
87°
54°
23
88°
53°
24
87°
49°
25
86°
43°
26
78°
44°
27
76°
41°
28
77°
42°
29
75°
42°
30
75°
45°
1
Hist. Avg.
77°
44°
2
Hist. Avg.
77°
43°
3
Hist. Avg.
76°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wiley
Wiley's September 2026 forecast shows daily high temperatures ranging from 75° to 95°, with overnight lows between 41° and 60°. The average high for September is 87° 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 Wiley. See also: October | November | December.