S
M
T
W
T
F
S
26
89°
76°
27
92°
73°
28
91°
71°
29
91°
74°
30
92°
73°
31
91°
75°
1
91°
76°
2
92°
73°
3
94°
74°
4
93°
73°
5
91°
74°
6
93°
75°
7
92°
73°
8
91°
73°
9
91°
74°
10
93°
73°
11
91°
75°
12
94°
75°
13
94°
74°
14
93°
73°
15
93°
74°
16
94°
73°
17
92°
73°
18
91°
74°
19
92°
75°
20
92°
72°
21
93°
73°
22
92°
72°
23
93°
73°
24
94°
74°
25
92°
73°
26
94°
75°
27
94°
75°
28
93°
73°
29
91°
74°
30
92°
73°
31
89°
74°
1
90°
74°
2
88°
73°
3
88°
73°
4
87°
72°
5
88°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sour Lake
Sour Lake's August 2026 forecast shows daily high temperatures ranging from 87° to 94°, with overnight lows between 71° and 76°. The average high for August is 92° 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 Sour Lake. See also: September | October | November.
