S
M
T
W
T
F
S
31
92°
72°
1
91°
73°
2
92°
72°
3
89°
69°
4
81°
72°
5
83°
71°
6
81°
70°
7
83°
74°
8
91°
75°
9
92°
74°
10
96°
73°
11
92°
74°
12
90°
75°
13
92°
72°
14
93°
72°
15
94°
74°
16
92°
73°
17
98°
78°
18
92°
73°
19
94°
74°
20
94°
74°
21
93°
73°
22
94°
74°
23
94°
75°
24
93°
75°
25
95°
74°
26
95°
75°
27
94°
75°
28
94°
74°
29
93°
75°
30
95°
76°
1
96°
76°
2
95°
75°
3
95°
75°
4
94°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in McKinney
McKinney's June 2026 forecast shows daily high temperatures ranging from 81° to 98°, with overnight lows between 70° and 78°. The average high for June is 92° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in McKinney. See also: July | August | September.