S
M
T
W
T
F
S
31
82°
54°
1
81°
59°
2
77°
54°
3
81°
49°
4
84°
52°
5
83°
56°
6
86°
63°
7
88°
63°
8
82°
67°
9
78°
69°
10
88°
70°
11
89°
71°
12
83°
66°
13
86°
61°
14
82°
58°
15
75°
55°
16
80°
53°
17
83°
61°
18
79°
62°
19
79°
59°
20
82°
57°
21
84°
59°
22
82°
61°
23
78°
56°
24
83°
63°
25
84°
65°
26
80°
69°
27
82°
68°
28
87°
69°
29
89°
70°
30
88°
69°
1
87°
69°
2
85°
67°
3
85°
67°
4
83°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Mount Vernon
Mount Vernon's June 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 56° and 70°. The average high for June is 84° with an average low of 66°. 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 Mount Vernon. See also: July | August | September.
