S
M
T
W
T
F
S
30
86°
76°
31
91°
77°
1
96°
74°
2
96°
73°
3
95°
72°
4
93°
70°
5
95°
70°
6
89°
69°
7
88°
69°
8
94°
68°
9
90°
63°
10
83°
62°
11
82°
59°
12
81°
60°
13
78°
57°
14
78°
56°
15
77°
51°
16
82°
57°
17
81°
58°
18
75°
53°
19
78°
55°
20
80°
56°
21
78°
56°
22
79°
54°
23
77°
54°
24
78°
53°
25
75°
53°
26
68°
46°
27
66°
42°
28
65°
40°
29
66°
45°
30
65°
40°
1
67°
49°
2
68°
47°
3
63°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Melcher-Dallas
Melcher-Dallas's September 2026 forecast shows daily high temperatures ranging from 63° to 96°, with overnight lows between 40° and 73°. The average high for September is 79° with an average low of 56°. 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 Melcher-Dallas. See also: October | November | December.