S
M
T
W
T
F
S
30
97°
75°
31
96°
77°
1
97°
77°
2
98°
76°
3
97°
77°
4
97°
78°
5
96°
78°
6
97°
75°
7
98°
69°
8
88°
69°
9
89°
72°
10
91°
73°
11
94°
74°
12
94°
72°
13
89°
73°
14
94°
74°
15
93°
66°
16
93°
65°
17
86°
65°
18
84°
66°
19
84°
63°
20
86°
62°
21
83°
62°
22
82°
63°
23
83°
62°
24
84°
63°
25
84°
67°
26
85°
68°
27
88°
69°
28
87°
70°
29
89°
65°
30
87°
67°
1
82°
64°
2
85°
60°
3
81°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Deep Ellum
Deep Ellum's September 2026 forecast shows daily high temperatures ranging from 81° to 98°, with overnight lows between 60° and 78°. The average high for September is 90° with an average low of 69°. 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 Deep Ellum. See also: October | November | December.