S
M
T
W
T
F
S
31
85°
62°
1
84°
56°
2
89°
63°
3
87°
62°
4
87°
66°
5
86°
62°
6
94°
58°
7
86°
70°
8
82°
68°
9
98°
61°
10
84°
58°
11
73°
54°
12
89°
56°
13
74°
53°
14
77°
49°
15
83°
49°
16
81°
49°
17
79°
58°
18
78°
51°
19
78°
50°
20
79°
57°
21
66°
54°
22
73°
57°
23
80°
53°
24
80°
54°
25
79°
58°
26
76°
59°
27
77°
62°
28
85°
64°
29
85°
62°
30
86°
61°
1
85°
61°
2
84°
62°
3
79°
59°
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 66° to 86°, with overnight lows between 50° and 66°. The average high for June is 80° with an average low of 59°. 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.
