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
89°
65°
15
80°
57°
16
79°
62°
17
75°
64°
18
84°
67°
19
78°
64°
20
81°
63°
21
80°
64°
22
78°
63°
23
79°
63°
24
80°
64°
25
80°
63°
26
78°
67°
27
82°
66°
28
80°
64°
29
79°
63°
30
78°
63°
1
79°
64°
2
81°
65°
3
81°
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 75° to 89°, with overnight lows between 57° and 70°. The average high for June is 80° 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.
