S
M
T
W
T
F
S
31
72°
49°
1
78°
51°
2
80°
52°
3
81°
52°
4
81°
53°
5
82°
52°
6
82°
53°
7
81°
53°
8
82°
52°
9
81°
52°
10
81°
51°
11
80°
51°
12
80°
50°
13
81°
48°
14
76°
49°
15
74°
45°
16
79°
54°
17
84°
54°
18
85°
53°
19
84°
54°
20
78°
54°
21
82°
55°
22
83°
55°
23
83°
54°
24
85°
55°
25
87°
55°
26
87°
54°
27
83°
56°
28
87°
55°
29
91°
54°
30
89°
58°
1
90°
58°
2
89°
56°
3
84°
60°
4
90°
58°
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 72° to 91°, with overnight lows between 45° and 60°. The average high for June is 83° 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.