S
M
T
W
T
F
S
26
93°
61°
27
92°
60°
28
92°
60°
29
91°
59°
30
93°
60°
31
93°
61°
1
91°
59°
2
92°
60°
3
92°
60°
4
91°
59°
5
91°
60°
6
89°
59°
7
90°
59°
8
90°
58°
9
87°
56°
10
85°
55°
11
83°
53°
12
83°
51°
13
84°
52°
14
83°
53°
15
84°
52°
16
83°
53°
17
87°
50°
18
89°
52°
19
90°
51°
20
86°
50°
21
85°
48°
22
84°
48°
23
83°
55°
24
83°
48°
25
84°
47°
26
83°
49°
27
83°
49°
28
82°
44°
29
81°
47°
30
82°
47°
31
87°
51°
1
88°
52°
2
84°
48°
3
81°
48°
4
80°
45°
5
79°
48°
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 79° to 93°, with overnight lows between 44° and 61°. The average high for August is 87° 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.
