S
M
T
W
T
F
S
31
76°
44°
1
78°
54°
2
75°
49°
3
83°
48°
4
83°
64°
5
86°
69°
6
90°
71°
7
88°
68°
8
77°
58°
9
81°
58°
10
82°
60°
11
89°
64°
12
89°
64°
13
91°
65°
14
90°
64°
15
87°
65°
16
86°
66°
17
87°
62°
18
83°
65°
19
88°
66°
20
87°
66°
21
88°
65°
22
88°
61°
23
82°
61°
24
83°
65°
25
86°
68°
26
89°
68°
27
88°
65°
28
83°
64°
29
84°
66°
30
84°
64°
1
85°
63°
2
84°
62°
3
85°
64°
4
88°
67°
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 77° to 91°, with overnight lows between 58° and 71°. The average high for June is 86° with an average low of 64°. 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.
