S
M
T
W
T
F
S
31
78°
53°
1
70°
55°
2
76°
55°
3
83°
64°
4
86°
66°
5
91°
64°
6
91°
70°
7
83°
68°
8
74°
64°
9
81°
64°
10
84°
69°
11
96°
74°
12
98°
74°
13
88°
72°
14
90°
72°
15
75°
65°
16
78°
60°
17
79°
65°
18
90°
69°
19
84°
71°
20
83°
63°
21
82°
66°
22
72°
67°
23
83°
65°
24
82°
66°
25
80°
66°
26
82°
65°
27
81°
66°
28
82°
67°
29
81°
70°
30
86°
70°
1
87°
69°
2
86°
69°
3
87°
70°
4
82°
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 72° to 87°, with overnight lows between 63° and 70°. The average high for June is 82° 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.
