S
M
T
W
T
F
S
31
81°
54°
1
79°
60°
2
77°
56°
3
81°
52°
4
84°
53°
5
84°
58°
6
85°
64°
7
87°
65°
8
81°
69°
9
81°
70°
10
90°
72°
11
89°
72°
12
84°
66°
13
84°
58°
14
82°
59°
15
75°
58°
16
79°
53°
17
84°
61°
18
79°
64°
19
80°
60°
20
83°
57°
21
84°
61°
22
84°
64°
23
81°
58°
24
81°
61°
25
84°
67°
26
81°
70°
27
81°
67°
28
84°
71°
29
89°
71°
30
91°
73°
1
90°
72°
2
89°
72°
3
93°
68°
4
86°
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 81° to 93°, with overnight lows between 58° and 73°. The average high for June is 86° with an average low of 68°. 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.
