S
M
T
W
T
F
S
28
78°
62°
29
83°
65°
30
85°
62°
1
84°
63°
2
83°
60°
3
77°
58°
4
79°
64°
5
82°
65°
6
86°
67°
7
87°
67°
8
83°
66°
9
86°
67°
10
87°
66°
11
87°
67°
12
86°
66°
13
86°
65°
14
85°
66°
15
87°
66°
16
86°
64°
17
81°
62°
18
79°
63°
19
79°
60°
20
80°
58°
21
79°
59°
22
80°
63°
23
81°
66°
24
83°
67°
25
82°
66°
26
79°
63°
27
81°
60°
28
82°
63°
29
85°
62°
30
86°
59°
31
86°
61°
1
85°
59°
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 77° to 87°, with overnight lows between 58° and 67°. The average high for July is 83° with an average low of 63°. 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.
