S
M
T
W
T
F
S
27
83°
59°
28
85°
61°
29
86°
61°
30
86°
60°
1
85°
61°
2
85°
62°
3
86°
60°
4
84°
55°
5
79°
54°
6
78°
55°
7
80°
58°
8
79°
57°
9
80°
57°
10
82°
56°
11
78°
53°
12
78°
52°
13
Hist. Avg.
79°
55°
14
Hist. Avg.
79°
54°
15
Hist. Avg.
78°
54°
16
Hist. Avg.
78°
54°
17
Hist. Avg.
78°
53°
18
Hist. Avg.
78°
53°
19
Hist. Avg.
78°
53°
20
Hist. Avg.
78°
52°
21
Hist. Avg.
77°
52°
22
Hist. Avg.
77°
52°
23
Hist. Avg.
77°
51°
24
Hist. Avg.
77°
51°
25
Hist. Avg.
77°
51°
26
Hist. Avg.
77°
50°
27
Hist. Avg.
76°
50°
28
Hist. Avg.
76°
50°
29
Hist. Avg.
76°
50°
30
Hist. Avg.
76°
49°
31
Hist. Avg.
76°
49°
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 78° to 86°, with overnight lows between 52° and 62°. The average high for October is 82° with an average low of 58°. 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.
