S
M
T
W
T
F
S
27
68°
54°
28
67°
54°
29
73°
53°
30
71°
49°
1
66°
53°
2
70°
58°
3
72°
47°
4
73°
46°
5
63°
48°
6
64°
51°
7
62°
54°
8
63°
54°
9
63°
53°
10
64°
54°
11
70°
54°
12
68°
48°
13
68°
44°
14
60°
45°
15
59°
44°
16
58°
44°
17
57°
43°
18
58°
43°
19
59°
44°
20
62°
50°
21
62°
50°
22
63°
51°
23
65°
49°
24
67°
44°
25
66°
43°
26
59°
40°
27
57°
41°
28
56°
38°
29
54°
42°
30
Hist. Avg.
59°
42°
31
Hist. Avg.
59°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Smithtown
Smithtown's October 2026 forecast shows daily high temperatures ranging from 54° to 73°, with overnight lows between 38° and 58°. The average high for October is 64° with an average low of 48°. 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.
