S
M
T
W
T
F
S
26
101°
79°
27
101°
78°
28
103°
79°
29
96°
76°
30
93°
74°
31
95°
75°
1
88°
73°
2
90°
70°
3
92°
65°
4
93°
65°
5
98°
68°
6
97°
75°
7
98°
72°
8
92°
73°
9
99°
72°
10
100°
77°
11
100°
75°
12
102°
78°
13
103°
82°
14
103°
78°
15
104°
74°
16
105°
81°
17
99°
80°
18
100°
74°
19
98°
79°
20
98°
67°
21
91°
67°
22
89°
66°
23
88°
66°
24
84°
65°
25
91°
69°
26
88°
66°
27
89°
67°
28
88°
66°
29
88°
65°
30
94°
69°
31
95°
70°
1
96°
70°
2
86°
63°
3
81°
61°
4
90°
68°
5
89°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Glencoe
Glencoe's August 2026 forecast shows daily high temperatures ranging from 81° to 98°, with overnight lows between 61° and 70°. The average high for August is 90° with an average low of 67°. 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 Glencoe. See also: September | October | November.