S
M
T
W
T
F
S
26
94°
77°
27
90°
76°
28
90°
76°
29
91°
75°
30
90°
75°
31
89°
74°
1
91°
76°
2
90°
77°
3
91°
77°
4
92°
78°
5
93°
78°
6
93°
77°
7
94°
78°
8
93°
77°
9
93°
78°
10
94°
78°
11
94°
77°
12
93°
78°
13
92°
78°
14
92°
77°
15
93°
77°
16
92°
76°
17
92°
74°
18
93°
74°
19
93°
74°
20
94°
75°
21
93°
74°
22
91°
75°
23
93°
74°
24
94°
73°
25
93°
74°
26
94°
74°
27
92°
72°
28
92°
72°
29
92°
73°
30
91°
72°
31
93°
73°
1
93°
74°
2
92°
72°
3
91°
72°
4
92°
74°
5
90°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lake Jackson
Lake Jackson's August 2026 forecast shows daily high temperatures ranging from 89° to 94°, with overnight lows between 72° and 78°. The average high for August is 92° with an average low of 75°. 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 Lake Jackson. See also: September | October | November.