S
M
T
W
T
F
S
27
71°
56°
28
69°
55°
29
71°
53°
30
67°
53°
1
66°
53°
2
73°
57°
3
66°
56°
4
64°
57°
5
69°
57°
6
72°
56°
7
71°
55°
8
69°
54°
9
65°
50°
10
60°
45°
11
59°
44°
12
60°
49°
13
62°
53°
14
66°
53°
15
69°
54°
16
68°
53°
17
65°
52°
18
67°
47°
19
57°
44°
20
57°
42°
21
59°
48°
22
64°
51°
23
65°
50°
24
66°
50°
25
58°
49°
26
57°
49°
27
56°
48°
28
60°
47°
29
63°
48°
30
52°
35°
31
50°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Smithtown
Smithtown's October 2026 forecast shows daily high temperatures ranging from 50° to 73°, with overnight lows between 35° and 57°. The average high for October is 64° with an average low of 50°. 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 Smithtown. See also: November | December | January.
