S
M
T
W
T
F
S
30
91°
65°
31
94°
66°
1
94°
69°
2
93°
70°
3
94°
69°
4
94°
70°
5
93°
70°
6
93°
68°
7
92°
65°
8
85°
67°
9
84°
68°
10
89°
69°
11
90°
68°
12
91°
68°
13
92°
67°
14
91°
60°
15
90°
59°
16
82°
58°
17
81°
59°
18
82°
61°
19
82°
58°
20
80°
58°
21
79°
57°
22
80°
60°
23
83°
63°
24
85°
64°
25
86°
64°
26
86°
63°
27
87°
61°
28
84°
59°
29
83°
58°
30
84°
58°
1
83°
57°
2
85°
61°
3
Hist. Avg.
82°
60°
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 79° to 94°, with overnight lows between 57° and 70°. The average high for September is 87° with an average low of 63°. 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.
