S
M
T
W
T
F
S
31
86°
66°
1
88°
70°
2
82°
68°
3
79°
63°
4
82°
61°
5
81°
68°
6
73°
64°
7
79°
70°
8
84°
71°
9
90°
72°
10
90°
72°
11
88°
64°
12
82°
66°
13
84°
65°
14
77°
57°
15
74°
60°
16
76°
58°
17
80°
62°
18
84°
65°
19
85°
64°
20
87°
67°
21
86°
65°
22
82°
69°
23
85°
69°
24
85°
68°
25
88°
70°
26
88°
69°
27
86°
69°
28
83°
68°
29
84°
70°
30
84°
70°
1
85°
69°
2
90°
71°
3
89°
71°
4
90°
64°
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 57° and 72°. The average high for June is 85° with an average low of 67°. 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.
