S
M
T
W
T
F
S
30
83°
62°
31
83°
63°
1
87°
63°
2
86°
62°
3
83°
63°
4
86°
62°
5
82°
62°
6
79°
61°
7
81°
61°
8
80°
60°
9
85°
55°
10
80°
61°
11
84°
61°
12
85°
60°
13
82°
60°
14
83°
59°
15
85°
59°
16
76°
57°
17
81°
58°
18
77°
57°
19
Hist. Avg.
79°
51°
20
Hist. Avg.
79°
51°
21
Hist. Avg.
79°
50°
22
Hist. Avg.
78°
50°
23
Hist. Avg.
78°
50°
24
Hist. Avg.
78°
49°
25
Hist. Avg.
77°
49°
26
Hist. Avg.
77°
49°
27
Hist. Avg.
77°
48°
28
Hist. Avg.
76°
48°
29
Hist. Avg.
76°
48°
30
Hist. Avg.
76°
47°
1
Hist. Avg.
75°
47°
2
Hist. Avg.
75°
47°
3
Hist. Avg.
75°
46°
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 76° to 87°, with overnight lows between 55° and 63°. The average high for September is 82° with an average low of 60°. 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.
