S
M
T
W
T
F
S
28
80°
58°
29
69°
60°
30
79°
63°
1
81°
61°
2
78°
63°
3
81°
63°
4
80°
64°
5
80°
61°
6
79°
62°
7
79°
60°
8
80°
63°
9
78°
61°
10
79°
62°
11
80°
56°
12
74°
61°
13
69°
57°
14
69°
56°
15
70°
59°
16
70°
60°
17
71°
61°
18
70°
61°
19
71°
60°
20
71°
62°
21
72°
62°
22
73°
61°
23
75°
63°
24
78°
64°
25
78°
63°
26
78°
64°
27
79°
63°
28
78°
62°
29
76°
62°
30
70°
60°
31
70°
61°
1
71°
62°
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 69° to 81°, with overnight lows between 56° and 64°. The average high for July is 75° with an average low of 61°. 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.
