S
M
T
W
T
F
S
30
89°
71°
31
88°
69°
1
89°
70°
2
88°
66°
3
87°
66°
4
87°
67°
5
88°
66°
6
89°
66°
7
90°
67°
8
91°
69°
9
91°
69°
10
90°
67°
11
91°
67°
12
91°
68°
13
90°
68°
14
91°
67°
15
91°
67°
16
90°
65°
17
88°
66°
18
88°
66°
19
89°
65°
20
89°
65°
21
88°
66°
22
89°
66°
23
Hist. Avg.
87°
65°
24
Hist. Avg.
86°
65°
25
Hist. Avg.
86°
64°
26
Hist. Avg.
86°
64°
27
Hist. Avg.
86°
64°
28
Hist. Avg.
85°
63°
29
Hist. Avg.
85°
63°
30
Hist. Avg.
85°
62°
1
Hist. Avg.
84°
62°
2
Hist. Avg.
84°
61°
3
Hist. Avg.
84°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Texas
Texas's September 2026 forecast shows daily high temperatures ranging from 87° to 91°, with overnight lows between 65° and 71°. The average high for September is 89° with an average low of 67°. 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 Texas. See also: October | November | December.
