S
M
T
W
T
F
S
28
86°
61°
29
92°
64°
30
91°
72°
1
98°
77°
2
104°
76°
3
104°
70°
4
100°
72°
5
88°
70°
6
74°
64°
7
72°
65°
8
81°
66°
9
82°
71°
10
90°
71°
11
87°
65°
12
83°
64°
13
88°
67°
14
90°
66°
15
88°
67°
16
88°
66°
17
90°
67°
18
86°
66°
19
84°
65°
20
85°
66°
21
82°
63°
22
82°
64°
23
83°
64°
24
85°
65°
25
85°
66°
26
88°
67°
27
86°
69°
28
89°
69°
29
88°
68°
30
88°
69°
31
88°
69°
1
88°
68°
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 90°, with overnight lows between 63° and 71°. The average high for July is 86° with an average low of 67°. 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.
