S
M
T
W
T
F
S
31
81°
51°
1
75°
61°
2
79°
52°
3
83°
48°
4
85°
54°
5
85°
62°
6
86°
68°
7
84°
67°
8
81°
71°
9
88°
70°
10
90°
67°
11
87°
66°
12
81°
62°
13
81°
59°
14
73°
56°
15
73°
51°
16
76°
55°
17
71°
51°
18
75°
59°
19
78°
55°
20
80°
58°
21
75°
56°
22
73°
60°
23
76°
51°
24
80°
52°
25
81°
63°
26
71°
62°
27
78°
66°
28
87°
69°
29
90°
73°
30
91°
72°
1
94°
73°
2
92°
71°
3
90°
69°
4
89°
70°
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 89° to 94°, with overnight lows between 69° and 73°. The average high for June is 91° with an average low of 71°. 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.