S
M
T
W
T
F
S
31
83°
62°
1
82°
60°
2
82°
52°
3
82°
57°
4
84°
61°
5
87°
64°
6
88°
70°
7
85°
70°
8
86°
70°
9
85°
66°
10
87°
68°
11
87°
68°
12
86°
64°
13
85°
65°
14
89°
67°
15
84°
66°
16
78°
64°
17
78°
65°
18
79°
67°
19
78°
68°
20
79°
68°
21
80°
67°
22
82°
68°
23
80°
65°
24
81°
68°
25
83°
68°
26
84°
70°
27
83°
68°
28
81°
69°
29
81°
68°
30
82°
67°
1
81°
65°
2
81°
70°
3
83°
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 78° to 89°, with overnight lows between 52° and 70°. 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.
