S
M
T
W
T
F
S
31
78°
45°
1
81°
51°
2
78°
49°
3
85°
48°
4
90°
50°
5
92°
56°
6
92°
61°
7
94°
67°
8
78°
64°
9
85°
62°
10
89°
70°
11
97°
69°
12
99°
69°
13
90°
67°
14
93°
66°
15
81°
56°
16
80°
50°
17
88°
60°
18
89°
73°
19
86°
62°
20
89°
51°
21
88°
63°
22
94°
65°
23
76°
61°
24
82°
61°
25
N/A
26
93°
70°
27
79°
70°
28
87°
67°
29
89°
67°
30
91°
71°
1
96°
75°
2
101°
75°
3
100°
73°
4
97°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Mount Vernon
Mount Vernon's June 2026 forecast shows daily high temperatures ranging from 79° to 101°, with overnight lows between 67° and 75°. The average high for June is 93° with an average low of 71°. 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.
