S
M
T
W
T
F
S
28
92°
72°
29
95°
72°
30
92°
71°
1
90°
70°
2
90°
69°
3
89°
66°
4
88°
67°
5
88°
66°
6
87°
65°
7
89°
66°
8
84°
61°
9
79°
65°
10
87°
67°
11
86°
66°
12
86°
66°
13
84°
65°
14
85°
66°
15
87°
67°
16
88°
68°
17
89°
69°
18
85°
67°
19
86°
67°
20
83°
66°
21
85°
68°
22
87°
68°
23
88°
67°
24
85°
67°
25
84°
68°
26
87°
68°
27
88°
69°
28
89°
69°
29
88°
68°
30
83°
67°
31
78°
66°
1
86°
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 78° to 95°, with overnight lows between 61° and 72°. The average high for July is 87° 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.
