S
M
T
W
T
F
S
28
84°
73°
29
90°
73°
30
91°
72°
1
94°
73°
2
89°
71°
3
90°
69°
4
89°
70°
5
86°
67°
6
87°
66°
7
84°
67°
8
85°
67°
9
85°
64°
10
86°
66°
11
84°
63°
12
82°
66°
13
83°
60°
14
78°
59°
15
79°
60°
16
79°
60°
17
81°
64°
18
84°
66°
19
85°
64°
20
80°
65°
21
83°
67°
22
83°
67°
23
85°
68°
24
86°
67°
25
85°
66°
26
84°
67°
27
85°
67°
28
86°
66°
29
86°
66°
30
85°
61°
31
79°
59°
1
78°
64°
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 78° to 94°, with overnight lows between 59° and 73°. The average high for July is 85° with an average low of 66°. 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.
