S
M
T
W
T
F
S
26
75°
64°
27
71°
64°
28
75°
65°
29
76°
65°
30
76°
64°
31
78°
66°
1
77°
65°
2
78°
66°
3
78°
65°
4
74°
64°
5
74°
64°
6
78°
65°
7
77°
62°
8
71°
60°
9
71°
59°
10
72°
64°
11
71°
64°
12
73°
63°
13
78°
66°
14
80°
64°
15
77°
64°
16
72°
63°
17
72°
56°
18
77°
63°
19
76°
63°
20
79°
62°
21
78°
61°
22
73°
60°
23
72°
58°
24
72°
57°
25
75°
58°
26
75°
58°
27
74°
54°
28
77°
59°
29
77°
60°
30
76°
60°
31
77°
61°
1
77°
60°
2
76°
52°
3
73°
49°
4
68°
53°
5
69°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Petoskey
Petoskey's August 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 49° and 66°. The average high for August is 75° with an average low of 61°. 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 Petoskey. See also: September | October | November.
