S
M
T
W
T
F
S
26
99°
62°
27
94°
64°
28
97°
67°
29
98°
59°
30
85°
65°
31
93°
53°
1
104°
56°
2
97°
63°
3
70°
45°
4
77°
40°
5
87°
43°
6
94°
47°
7
94°
48°
8
97°
52°
9
91°
56°
10
90°
51°
11
92°
51°
12
81°
59°
13
76°
58°
14
77°
60°
15
74°
53°
16
84°
56°
17
86°
58°
18
80°
51°
19
82°
57°
20
87°
54°
21
92°
58°
22
88°
54°
23
87°
52°
24
86°
52°
25
88°
53°
26
86°
53°
27
83°
51°
28
81°
46°
29
82°
52°
30
84°
52°
31
72°
50°
1
72°
49°
2
73°
50°
3
78°
48°
4
77°
48°
5
80°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dayton
Dayton's August 2026 forecast shows daily high temperatures ranging from 72° to 92°, with overnight lows between 46° and 58°. The average high for August is 82° with an average low of 52°. 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 Dayton. See also: September | October | November.
