S
M
T
W
T
F
S
26
79°
57°
27
83°
50°
28
79°
57°
29
83°
53°
30
82°
53°
31
87°
59°
1
77°
51°
2
79°
49°
3
88°
53°
4
92°
55°
5
91°
54°
6
88°
54°
7
87°
55°
8
84°
54°
9
86°
54°
10
84°
51°
11
85°
55°
12
84°
56°
13
88°
56°
14
81°
51°
15
78°
50°
16
82°
50°
17
82°
54°
18
81°
52°
19
83°
54°
20
85°
54°
21
82°
51°
22
77°
49°
23
80°
48°
24
79°
51°
25
83°
52°
26
77°
50°
27
79°
52°
28
81°
53°
29
83°
55°
30
77°
54°
31
78°
54°
1
83°
53°
2
82°
54°
3
79°
53°
4
78°
50°
5
75°
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 75° to 92°, with overnight lows between 48° and 59°. The average high for August is 82° with an average low of 53°. 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.
