S
M
T
W
T
F
S
26
81°
65°
27
85°
66°
28
83°
68°
29
80°
64°
30
84°
59°
31
86°
64°
1
79°
68°
2
76°
65°
3
80°
61°
4
82°
58°
5
84°
63°
6
86°
67°
7
84°
70°
8
86°
70°
9
87°
68°
10
89°
73°
11
78°
67°
12
73°
69°
13
86°
69°
14
83°
69°
15
89°
73°
16
93°
69°
17
85°
66°
18
84°
66°
19
87°
67°
20
85°
65°
21
84°
66°
22
84°
66°
23
82°
64°
24
80°
63°
25
81°
61°
26
82°
64°
27
86°
67°
28
79°
58°
29
80°
59°
30
82°
61°
31
85°
65°
1
87°
66°
2
88°
66°
3
88°
65°
4
86°
65°
5
85°
64°
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 73° to 93°, with overnight lows between 58° and 73°. The average high for August is 84° with an average low of 65°. 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.
