S
M
T
W
T
F
S
30
100°
79°
31
100°
77°
1
100°
76°
2
97°
75°
3
89°
74°
4
97°
75°
5
95°
76°
6
99°
76°
7
100°
78°
8
99°
78°
9
98°
77°
10
98°
74°
11
93°
72°
12
91°
72°
13
92°
71°
14
87°
67°
15
91°
71°
16
91°
70°
17
90°
71°
18
90°
71°
19
89°
70°
20
90°
70°
21
89°
69°
22
86°
69°
23
86°
68°
24
88°
68°
25
87°
67°
26
88°
67°
27
89°
68°
28
89°
67°
29
88°
66°
30
88°
67°
1
87°
67°
2
87°
66°
3
86°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wylie
Wylie's September 2026 forecast shows daily high temperatures ranging from 86° to 100°, with overnight lows between 66° and 78°. The average high for September is 91° with an average low of 71°. 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 Wylie. See also: October | November | December.
