S
M
T
W
T
F
S
28
95°
79°
29
96°
81°
30
93°
77°
1
94°
77°
2
94°
75°
3
95°
76°
4
96°
77°
5
93°
71°
6
96°
72°
7
97°
73°
8
97°
75°
9
99°
77°
10
97°
76°
11
97°
76°
12
95°
73°
13
87°
74°
14
90°
73°
15
90°
72°
16
88°
74°
17
91°
75°
18
94°
74°
19
97°
77°
20
99°
76°
21
101°
77°
22
102°
76°
23
103°
77°
24
100°
76°
25
99°
76°
26
100°
77°
27
99°
79°
28
98°
78°
29
106°
80°
30
99°
77°
31
98°
76°
1
98°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in McKinney
McKinney's July 2026 forecast shows daily high temperatures ranging from 88° to 106°, with overnight lows between 74° and 80°. The average high for July is 98° with an average low of 77°. 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 McKinney. See also: August | September | October.
