S
M
T
W
T
F
S
26
87°
68°
27
86°
65°
28
88°
68°
29
85°
67°
30
88°
69°
31
83°
69°
1
89°
71°
2
90°
71°
3
90°
70°
4
88°
69°
5
88°
70°
6
90°
71°
7
90°
71°
8
90°
69°
9
88°
63°
10
78°
61°
11
79°
68°
12
81°
68°
13
86°
66°
14
79°
60°
15
78°
59°
16
78°
60°
17
79°
64°
18
79°
60°
19
80°
63°
20
83°
66°
21
85°
65°
22
83°
66°
23
85°
66°
24
87°
61°
25
87°
62°
26
85°
65°
27
86°
56°
28
84°
55°
29
76°
56°
30
75°
55°
31
76°
60°
1
81°
53°
2
76°
51°
3
74°
50°
4
73°
51°
5
75°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Grant City
Grant City's August 2026 forecast shows daily high temperatures ranging from 73° to 90°, with overnight lows between 50° and 71°. The average high for August is 83° with an average low of 63°. 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 Grant City. See also: September | October | November.
