S
M
T
W
T
F
S
31
76°
48°
1
74°
55°
2
79°
50°
3
81°
56°
4
83°
63°
5
85°
66°
6
82°
67°
7
82°
67°
8
82°
64°
9
81°
66°
10
83°
68°
11
83°
66°
12
84°
64°
13
83°
65°
14
82°
66°
15
83°
63°
16
74°
58°
17
77°
59°
18
79°
60°
19
79°
61°
20
80°
67°
21
80°
67°
22
80°
66°
23
81°
67°
24
82°
65°
25
81°
67°
26
85°
69°
27
85°
68°
28
82°
64°
29
81°
62°
30
82°
61°
1
81°
62°
2
82°
62°
3
82°
69°
4
83°
63°
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 74° to 85°, with overnight lows between 50° and 69°. The average high for June is 81° with an average low of 64°. 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.