S
M
T
W
T
F
S
30
104°
73°
31
100°
75°
1
100°
76°
2
100°
75°
3
97°
73°
4
98°
75°
5
99°
73°
6
98°
72°
7
101°
74°
8
100°
73°
9
101°
74°
10
95°
71°
11
87°
64°
12
91°
68°
13
90°
69°
14
90°
69°
15
91°
68°
16
91°
69°
17
90°
69°
18
91°
68°
19
90°
69°
20
90°
68°
21
89°
68°
22
88°
67°
23
88°
67°
24
87°
66°
25
88°
65°
26
87°
64°
27
88°
65°
28
88°
65°
29
87°
64°
30
87°
64°
1
86°
63°
2
86°
64°
3
85°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sulphur
Sulphur's September 2026 forecast shows daily high temperatures ranging from 85° to 101°, with overnight lows between 63° and 76°. The average high for September is 92° 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 Sulphur. See also: October | November | December.
