S
M
T
W
T
F
S
31
85°
72°
1
85°
69°
2
84°
59°
3
83°
58°
4
83°
61°
5
86°
65°
6
87°
65°
7
89°
67°
8
91°
67°
9
90°
69°
10
88°
69°
11
89°
70°
12
88°
69°
13
87°
70°
14
88°
69°
15
91°
70°
16
92°
70°
17
90°
69°
18
92°
70°
19
92°
71°
20
93°
71°
21
93°
72°
22
94°
72°
23
94°
70°
24
93°
71°
25
93°
70°
26
92°
72°
27
94°
71°
28
93°
72°
29
89°
72°
30
91°
71°
1
90°
71°
2
91°
70°
3
92°
72°
4
93°
72°
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 83° to 94°, with overnight lows between 58° and 72°. The average high for June is 90° with an average low of 69°. 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.
