S
M
T
W
T
F
S
27
62°
58°
28
62°
56°
29
68°
55°
30
73°
58°
1
77°
60°
2
84°
61°
3
71°
53°
4
60°
53°
5
68°
50°
6
61°
43°
7
64°
39°
8
73°
50°
9
69°
46°
10
67°
46°
11
58°
51°
12
70°
52°
13
70°
53°
14
77°
55°
15
64°
57°
16
73°
50°
17
54°
41°
18
56°
48°
19
61°
47°
20
65°
48°
21
68°
47°
22
65°
45°
23
65°
48°
24
68°
48°
25
65°
46°
26
61°
46°
27
64°
42°
28
54°
36°
29
54°
35°
30
60°
45°
31
57°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mamaroneck
Mamaroneck's October 2026 forecast shows daily high temperatures ranging from 54° to 77°, with overnight lows between 35° and 57°. The average high for October is 63° with an average low of 46°. 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 Mamaroneck. See also: November | December | January.