S
M
T
W
T
F
S
27
61°
45°
28
62°
45°
29
60°
46°
30
59°
43°
1
61°
45°
2
64°
50°
3
67°
46°
4
68°
47°
5
67°
44°
6
63°
40°
7
59°
40°
8
58°
39°
9
58°
40°
10
62°
40°
11
57°
47°
12
57°
40°
13
Hist. Avg.
60°
44°
14
Hist. Avg.
60°
44°
15
Hist. Avg.
60°
43°
16
Hist. Avg.
59°
43°
17
Hist. Avg.
59°
43°
18
Hist. Avg.
58°
43°
19
Hist. Avg.
58°
43°
20
Hist. Avg.
58°
42°
21
Hist. Avg.
58°
42°
22
Hist. Avg.
57°
42°
23
Hist. Avg.
57°
42°
24
Hist. Avg.
57°
42°
25
Hist. Avg.
56°
42°
26
Hist. Avg.
56°
42°
27
Hist. Avg.
56°
41°
28
Hist. Avg.
56°
41°
29
Hist. Avg.
55°
41°
30
Hist. Avg.
55°
41°
31
Hist. Avg.
55°
41°
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 57° to 68°, with overnight lows between 39° and 50°. The average high for October is 61° with an average low of 44°. 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.
