S
M
T
W
T
F
S
31
75°
50°
1
65°
48°
2
77°
46°
3
75°
54°
4
75°
58°
5
77°
64°
6
72°
61°
7
76°
56°
8
69°
58°
9
72°
58°
10
73°
59°
11
75°
62°
12
77°
64°
13
74°
61°
14
76°
62°
15
75°
63°
16
74°
56°
17
70°
60°
18
75°
61°
19
76°
61°
20
74°
60°
21
79°
54°
22
70°
54°
23
71°
59°
24
75°
64°
25
80°
63°
26
78°
59°
27
72°
57°
28
73°
61°
29
73°
62°
30
74°
60°
1
74°
63°
2
75°
61°
3
79°
63°
4
81°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Dunnville
Dunnville's June 2026 forecast shows daily high temperatures ranging from 69° to 81°, with overnight lows between 54° and 65°. The average high for June is 75° with an average low of 60°. 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 Dunnville. See also: July | August | September.