S
M
T
W
T
F
S
27
N/A
28
63°
57°
29
72°
55°
30
68°
52°
1
73°
54°
2
74°
66°
3
72°
48°
4
63°
55°
5
72°
53°
6
61°
35°
7
64°
31°
8
75°
43°
9
72°
37°
10
68°
39°
11
62°
41°
12
71°
53°
13
67°
48°
14
81°
61°
15
65°
43°
16
67°
57°
17
N/A
18
56°
42°
19
61°
49°
20
65°
49°
21
59°
45°
22
60°
47°
23
60°
42°
24
55°
44°
25
59°
47°
26
63°
49°
27
61°
44°
28
58°
43°
29
58°
43°
30
57°
45°
31
54°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Mattituck
Mattituck's October 2026 forecast shows daily high temperatures ranging from 54° to 65°, with overnight lows between 42° and 49°. The average high for October is 59° with an average low of 45°. 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 Mattituck. See also: November | December | January.
