S
M
T
W
T
F
S
27
73°
52°
28
75°
52°
29
77°
48°
30
77°
53°
1
85°
62°
2
74°
50°
3
67°
46°
4
72°
44°
5
66°
43°
6
67°
38°
7
76°
48°
8
73°
41°
9
69°
46°
10
76°
55°
11
66°
57°
12
71°
52°
13
68°
44°
14
56°
36°
15
58°
40°
16
63°
45°
17
59°
42°
18
59°
43°
19
61°
42°
20
59°
35°
21
56°
42°
22
55°
35°
23
53°
30°
24
53°
32°
25
56°
35°
26
61°
37°
27
59°
29°
28
50°
28°
29
50°
28°
30
51°
31°
31
58°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mount Vernon
Mount Vernon's October 2026 forecast shows daily high temperatures ranging from 50° to 76°, with overnight lows between 28° and 57°. The average high for October is 61° with an average low of 39°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Mount Vernon. See also: November | December | January.
