S
M
T
W
T
F
S
28
72°
45°
29
72°
45°
30
77°
45°
1
82°
49°
2
89°
51°
3
88°
54°
4
91°
54°
5
89°
55°
6
89°
55°
7
90°
56°
8
84°
50°
9
87°
55°
10
86°
55°
11
87°
56°
12
88°
57°
13
88°
56°
14
87°
56°
15
86°
55°
16
88°
56°
17
86°
56°
18
81°
55°
19
80°
56°
20
84°
57°
21
82°
57°
22
90°
58°
23
85°
57°
24
87°
58°
25
89°
57°
26
90°
58°
27
90°
58°
28
89°
57°
29
83°
58°
30
82°
58°
31
82°
56°
1
84°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Dayton
Dayton's July 2026 forecast shows daily high temperatures ranging from 72° to 91°, with overnight lows between 45° and 58°. The average high for July is 85° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Dayton. See also: August | September | October.
