S
M
T
W
T
F
S
26
93°
70°
27
86°
72°
28
82°
68°
29
81°
59°
30
84°
57°
31
76°
62°
1
70°
66°
2
78°
61°
3
82°
56°
4
84°
59°
5
81°
65°
6
81°
66°
7
85°
64°
8
81°
61°
9
85°
58°
10
86°
69°
11
80°
67°
12
81°
68°
13
76°
64°
14
80°
68°
15
81°
71°
16
84°
65°
17
80°
62°
18
78°
60°
19
83°
61°
20
79°
57°
21
80°
56°
22
80°
57°
23
75°
53°
24
77°
50°
25
79°
54°
26
84°
61°
27
81°
56°
28
82°
58°
29
80°
56°
30
82°
68°
31
89°
70°
1
92°
71°
2
93°
70°
3
87°
69°
4
90°
65°
5
86°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sugar Grove
Sugar Grove's August 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 64° and 71°. The average high for August is 88° with an average low of 68°. 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 Sugar Grove. See also: September | October | November.