S
M
T
W
T
F
S
26
98°
76°
27
99°
76°
28
98°
75°
29
100°
77°
30
100°
77°
31
99°
76°
1
99°
77°
2
98°
77°
3
100°
76°
4
100°
77°
5
101°
77°
6
100°
76°
7
100°
77°
8
99°
77°
9
100°
76°
10
100°
75°
11
100°
76°
12
99°
73°
13
98°
75°
14
100°
74°
15
96°
75°
16
96°
73°
17
97°
74°
18
98°
74°
19
99°
72°
20
94°
70°
21
94°
70°
22
93°
71°
23
94°
71°
24
94°
72°
25
95°
71°
26
94°
71°
27
94°
72°
28
96°
71°
29
97°
71°
30
97°
72°
31
96°
74°
1
95°
72°
2
96°
73°
3
94°
71°
4
92°
72°
5
92°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in La Grange
La Grange's August 2026 forecast shows daily high temperatures ranging from 92° to 101°, with overnight lows between 70° and 77°. The average high for August is 97° 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 La Grange. See also: September | October | November.
