S
M
T
W
T
F
S
28
83°
67°
29
82°
65°
30
81°
67°
1
87°
66°
2
85°
62°
3
81°
63°
4
84°
64°
5
86°
64°
6
89°
69°
7
88°
68°
8
89°
68°
9
90°
69°
10
88°
70°
11
87°
68°
12
87°
64°
13
82°
63°
14
87°
69°
15
89°
69°
16
87°
68°
17
88°
68°
18
Hist. Avg.
87°
67°
19
Hist. Avg.
87°
67°
20
Hist. Avg.
87°
67°
21
Hist. Avg.
87°
67°
22
Hist. Avg.
87°
67°
23
Hist. Avg.
87°
67°
24
Hist. Avg.
87°
67°
25
Hist. Avg.
87°
67°
26
Hist. Avg.
87°
67°
27
Hist. Avg.
87°
67°
28
Hist. Avg.
87°
67°
29
Hist. Avg.
87°
67°
30
Hist. Avg.
87°
67°
31
Hist. Avg.
87°
67°
1
Hist. Avg.
87°
67°
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 81° to 90°, with overnight lows between 62° and 70°. The average high for July is 86° 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 July weather will actually feel in Mount Vernon. See also: August | September | October.
