S
M
T
W
T
F
S
31
82°
54°
1
81°
59°
2
77°
54°
3
81°
49°
4
83°
58°
5
81°
62°
6
85°
63°
7
81°
66°
8
83°
65°
9
84°
66°
10
82°
67°
11
82°
66°
12
86°
65°
13
85°
68°
14
84°
66°
15
85°
66°
16
85°
65°
17
80°
63°
18
81°
66°
19
84°
68°
20
87°
67°
21
85°
66°
22
79°
65°
23
80°
65°
24
85°
68°
25
86°
68°
26
86°
67°
27
83°
68°
28
85°
68°
29
80°
68°
30
80°
68°
1
81°
66°
2
80°
64°
3
80°
62°
4
81°
63°
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 79° to 87°, with overnight lows between 58° and 68°. The average high for June is 83° with an average low of 66°. 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.
