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