S
M
T
W
T
F
S
31
77°
57°
1
88°
61°
2
82°
57°
3
84°
54°
4
84°
64°
5
82°
66°
6
86°
64°
7
81°
68°
8
84°
70°
9
91°
68°
10
90°
63°
11
77°
57°
12
82°
55°
13
75°
57°
14
72°
50°
15
81°
48°
16
75°
63°
17
77°
57°
18
77°
53°
19
79°
57°
20
80°
60°
21
68°
53°
22
74°
57°
23
77°
56°
24
81°
55°
25
80°
60°
26
78°
61°
27
77°
62°
28
76°
59°
29
79°
59°
30
78°
62°
1
83°
61°
2
83°
60°
3
77°
58°
4
79°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Dayton
Dayton's June 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 53° and 64°. The average high for June is 78° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Dayton. See also: July | August | September.