S
M
T
W
T
F
S
28
94°
67°
29
94°
68°
30
90°
67°
1
91°
68°
2
90°
67°
3
92°
68°
4
95°
71°
5
95°
70°
6
94°
70°
7
91°
69°
8
90°
68°
9
91°
68°
10
93°
69°
11
91°
70°
12
92°
70°
13
90°
71°
14
91°
71°
15
91°
72°
16
92°
70°
17
91°
70°
18
92°
71°
19
93°
69°
20
91°
68°
21
95°
72°
22
94°
73°
23
95°
71°
24
92°
72°
25
94°
74°
26
95°
73°
27
Hist. Avg.
92°
71°
28
Hist. Avg.
92°
71°
29
Hist. Avg.
92°
71°
30
Hist. Avg.
92°
71°
31
Hist. Avg.
92°
71°
1
Hist. Avg.
92°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Mount Vernon
Mount Vernon's July 2026 forecast shows daily high temperatures ranging from 90° to 95°, with overnight lows between 67° and 74°. The average high for July is 92° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Mount Vernon. See also: August | September | October.
