S
M
T
W
T
F
S
30
99°
67°
31
99°
70°
1
99°
71°
2
95°
72°
3
95°
72°
4
95°
73°
5
95°
72°
6
95°
70°
7
99°
71°
8
97°
74°
9
93°
71°
10
95°
70°
11
94°
72°
12
92°
69°
13
91°
68°
14
90°
67°
15
89°
70°
16
88°
68°
17
90°
67°
18
88°
66°
19
90°
67°
20
91°
67°
21
91°
68°
22
90°
67°
23
91°
67°
24
90°
66°
25
89°
66°
26
86°
65°
27
82°
60°
28
80°
56°
29
79°
54°
30
80°
54°
1
85°
58°
2
86°
58°
3
77°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dumas City
Dumas City's September 2026 forecast shows daily high temperatures ranging from 77° to 99°, with overnight lows between 54° and 74°. The average high for September is 90° with an average low of 66°. 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 Dumas City. See also: October | November | December.
