S
M
T
W
T
F
S
27
86°
66°
28
87°
66°
29
87°
65°
30
86°
65°
1
87°
64°
2
88°
63°
3
86°
64°
4
86°
64°
5
84°
63°
6
86°
58°
7
85°
56°
8
83°
59°
9
83°
56°
10
77°
58°
11
78°
61°
12
82°
57°
13
81°
56°
14
82°
60°
15
83°
61°
16
77°
60°
17
82°
60°
18
82°
53°
19
78°
52°
20
76°
52°
21
76°
56°
22
78°
59°
23
79°
58°
24
78°
57°
25
79°
57°
26
77°
56°
27
77°
51°
28
76°
47°
29
72°
47°
30
70°
48°
31
71°
54°
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 70° to 88°, with overnight lows between 47° and 66°. The average high for October is 81° with an average low of 58°. 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.
