S
M
T
W
T
F
S
27
83°
60°
28
86°
62°
29
85°
61°
30
86°
60°
1
87°
62°
2
87°
58°
3
86°
56°
4
80°
57°
5
78°
56°
6
79°
57°
7
79°
57°
8
80°
61°
9
84°
61°
10
85°
60°
11
83°
61°
12
84°
60°
13
84°
59°
14
82°
53°
15
77°
52°
16
75°
52°
17
75°
53°
18
76°
52°
19
76°
57°
20
75°
56°
21
75°
57°
22
80°
58°
23
81°
57°
24
80°
56°
25
79°
56°
26
74°
54°
27
75°
50°
28
73°
48°
29
72°
53°
30
73°
54°
31
Hist. Avg.
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Mount Vernon
Mount Vernon's October 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 48° and 62°. The average high for October is 80° with an average low of 57°. 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.
