S
M
T
W
T
F
S
26
81°
60°
27
76°
60°
28
75°
59°
29
75°
60°
30
78°
61°
31
83°
61°
1
79°
60°
2
76°
59°
3
84°
52°
4
78°
52°
5
75°
56°
6
78°
54°
7
76°
53°
8
75°
54°
9
75°
51°
10
77°
58°
11
78°
58°
12
77°
54°
13
80°
52°
14
75°
51°
15
75°
52°
16
78°
52°
17
75°
54°
18
75°
50°
19
76°
51°
20
76°
56°
21
79°
58°
22
81°
58°
23
81°
59°
24
82°
58°
25
82°
58°
26
81°
55°
27
76°
53°
28
77°
57°
29
80°
51°
30
78°
48°
31
73°
46°
1
70°
49°
2
71°
46°
3
71°
48°
4
72°
47°
5
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Onaway
Onaway's August 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 46° and 61°. The average high for August is 77° with an average low of 54°. 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 Onaway. See also: September | October | November.
