S
M
T
W
T
F
S
28
80°
66°
29
92°
75°
30
90°
72°
1
85°
68°
2
81°
66°
3
84°
68°
4
85°
64°
5
85°
63°
6
86°
65°
7
84°
65°
8
77°
67°
9
83°
64°
10
85°
61°
11
87°
65°
12
90°
68°
13
93°
67°
14
93°
67°
15
95°
68°
16
96°
73°
17
91°
71°
18
90°
63°
19
89°
63°
20
86°
62°
21
84°
61°
22
84°
62°
23
83°
63°
24
84°
62°
25
81°
70°
26
88°
66°
27
83°
63°
28
76°
60°
29
76°
62°
30
77°
62°
31
81°
63°
1
77°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Dennison
Dennison's July 2026 forecast shows daily high temperatures ranging from 76° to 96°, with overnight lows between 60° and 73°. The average high for July is 86° with an average low of 65°. 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 Dennison. See also: August | September | October.