S
M
T
W
T
F
S
28
83°
73°
29
81°
70°
30
85°
61°
1
91°
73°
2
95°
75°
3
98°
78°
4
100°
78°
5
97°
77°
6
93°
77°
7
88°
74°
8
82°
72°
9
88°
73°
10
95°
74°
11
89°
73°
12
84°
69°
13
84°
68°
14
89°
69°
15
94°
74°
16
95°
72°
17
90°
73°
18
89°
72°
19
88°
71°
20
87°
79°
21
84°
69°
22
84°
70°
23
85°
70°
24
85°
71°
25
84°
72°
26
85°
73°
27
88°
74°
28
90°
74°
29
86°
73°
30
89°
73°
31
90°
74°
1
89°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Grafton
Grafton's July 2026 forecast shows daily high temperatures ranging from 82° to 95°, with overnight lows between 68° and 79°. The average high for July is 88° with an average low of 72°. 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 Grafton. See also: August | September | October.