S
M
T
W
T
F
S
30
78°
53°
31
80°
54°
1
81°
52°
2
79°
51°
3
79°
49°
4
78°
47°
5
75°
44°
6
73°
46°
7
72°
47°
8
77°
52°
9
79°
52°
10
78°
46°
11
75°
50°
12
75°
49°
13
76°
50°
14
76°
50°
15
77°
49°
16
75°
47°
17
64°
44°
18
68°
47°
19
74°
44°
20
Hist. Avg.
70°
40°
21
Hist. Avg.
70°
40°
22
Hist. Avg.
70°
40°
23
Hist. Avg.
69°
39°
24
Hist. Avg.
69°
39°
25
Hist. Avg.
68°
39°
26
Hist. Avg.
68°
38°
27
Hist. Avg.
67°
38°
28
Hist. Avg.
67°
38°
29
Hist. Avg.
66°
37°
30
Hist. Avg.
66°
37°
1
Hist. Avg.
66°
37°
2
Hist. Avg.
65°
37°
3
Hist. Avg.
64°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Denton
Denton's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 44° and 54°. The average high for September is 76° with an average low of 49°. 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 Denton. See also: October | November | December.
