S
M
T
W
T
F
S
31
72°
36°
1
83°
39°
2
86°
47°
3
67°
47°
4
71°
47°
5
64°
47°
6
64°
45°
7
71°
51°
8
62°
49°
9
67°
46°
10
67°
47°
11
69°
48°
12
79°
51°
13
81°
53°
14
83°
52°
15
81°
51°
16
73°
48°
17
71°
44°
18
74°
45°
19
69°
44°
20
76°
48°
21
77°
46°
22
70°
45°
23
68°
44°
24
69°
45°
25
77°
46°
26
79°
51°
27
80°
52°
28
80°
52°
29
79°
50°
30
80°
48°
1
74°
48°
2
73°
46°
3
77°
47°
4
78°
48°
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 62° to 83°, with overnight lows between 44° and 53°. The average high for June is 73° with an average low of 48°. 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.