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
63°
50°
16
70°
50°
17
55°
40°
18
54°
42°
19
61°
47°
20
65°
49°
21
62°
48°
22
61°
47°
23
63°
46°
24
60°
46°
25
61°
46°
26
60°
44°
27
61°
47°
28
63°
42°
29
53°
37°
30
60°
46°
31
56°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Peconic
Peconic's October 2026 forecast shows daily high temperatures ranging from 53° to 70°, with overnight lows between 37° and 50°. The average high for October is 60° 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 Peconic. See also: November | December | January.