S
M
T
W
T
F
S
30
102°
76°
31
102°
76°
1
98°
77°
2
91°
76°
3
91°
76°
4
95°
74°
5
95°
75°
6
98°
75°
7
100°
76°
8
99°
75°
9
94°
74°
10
94°
74°
11
93°
73°
12
90°
71°
13
91°
72°
14
88°
68°
15
90°
72°
16
91°
71°
17
91°
72°
18
90°
71°
19
90°
71°
20
89°
72°
21
89°
71°
22
87°
70°
23
89°
70°
24
89°
69°
25
88°
69°
26
89°
68°
27
90°
69°
28
90°
68°
29
89°
67°
30
89°
68°
1
88°
68°
2
88°
67°
3
87°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tyler
Tyler's September 2026 forecast shows daily high temperatures ranging from 87° to 100°, with overnight lows between 67° and 77°. 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 Tyler. See also: October | November | December.
