S
M
T
W
T
F
S
26
103°
73°
27
99°
72°
28
99°
59°
29
100°
73°
30
100°
73°
31
102°
77°
1
93°
72°
2
96°
66°
3
99°
64°
4
100°
52°
5
102°
63°
6
101°
74°
7
99°
75°
8
102°
73°
9
102°
71°
10
100°
79°
11
102°
76°
12
103°
80°
13
103°
81°
14
100°
80°
15
99°
79°
16
105°
77°
17
104°
73°
18
109°
73°
19
107°
75°
20
108°
79°
21
100°
77°
22
100°
77°
23
106°
74°
24
111°
78°
25
106°
78°
26
101°
72°
27
99°
75°
28
100°
70°
29
101°
72°
30
100°
76°
31
99°
76°
1
97°
74°
2
97°
75°
3
100°
74°
4
99°
75°
5
97°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sulphur
Sulphur's August 2026 forecast shows daily high temperatures ranging from 97° to 101°, with overnight lows between 70° and 76°. The average high for August is 99° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Sulphur. See also: September | October | November.