S
M
T
W
T
F
S
31
76°
40°
1
71°
44°
2
78°
43°
3
78°
45°
4
80°
44°
5
74°
55°
6
71°
54°
7
74°
49°
8
73°
47°
9
70°
59°
10
79°
61°
11
79°
60°
12
73°
57°
13
75°
54°
14
62°
47°
15
72°
44°
16
73°
49°
17
67°
49°
18
62°
53°
19
64°
47°
20
68°
51°
21
66°
48°
22
69°
50°
23
68°
54°
24
67°
53°
25
68°
54°
26
72°
53°
27
73°
56°
28
72°
55°
29
71°
57°
30
72°
57°
1
74°
54°
2
73°
55°
3
67°
54°
4
68°
55°
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 64° to 74°, with overnight lows between 47° and 57°. The average high for June is 70° with an average low of 53°. 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.