S
M
T
W
T
F
S
31
85°
62°
1
83°
63°
2
85°
63°
3
78°
63°
4
80°
62°
5
84°
63°
6
88°
65°
7
90°
65°
8
87°
60°
9
84°
62°
10
85°
59°
11
81°
60°
12
79°
56°
13
80°
57°
14
82°
60°
15
74°
57°
16
75°
54°
17
75°
56°
18
77°
59°
19
78°
62°
20
76°
62°
21
83°
64°
22
81°
64°
23
86°
63°
24
82°
65°
25
87°
65°
26
82°
61°
27
84°
65°
28
83°
67°
29
87°
66°
30
80°
65°
1
86°
66°
2
88°
67°
3
85°
64°
4
80°
61°
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 74° to 90°, with overnight lows between 54° and 67°. The average high for June is 82° with an average low of 62°. 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.
