S
M
T
W
T
F
S
28
78°
63°
29
81°
59°
30
82°
56°
1
75°
57°
2
74°
56°
3
73°
57°
4
75°
62°
5
75°
64°
6
79°
56°
7
75°
58°
8
76°
55°
9
76°
58°
10
77°
65°
11
77°
60°
12
81°
57°
13
76°
57°
14
76°
58°
15
77°
60°
16
82°
64°
17
82°
65°
18
83°
66°
19
81°
66°
20
80°
63°
21
82°
66°
22
83°
59°
23
81°
62°
24
83°
60°
25
79°
58°
26
76°
57°
27
75°
57°
28
76°
58°
29
76°
58°
30
77°
59°
31
76°
57°
1
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Dunnville
Dunnville's July 2026 forecast shows daily high temperatures ranging from 73° to 83°, with overnight lows between 55° and 66°. The average high for July is 78° 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 July weather will actually feel in Dunnville. See also: August | September | October.
