S
M
T
W
T
F
S
27
72°
64°
28
73°
61°
29
68°
60°
30
72°
64°
1
69°
49°
2
70°
41°
3
80°
45°
4
73°
44°
5
81°
40°
6
88°
52°
7
79°
47°
8
80°
56°
9
79°
60°
10
86°
59°
11
82°
53°
12
71°
48°
13
59°
50°
14
60°
52°
15
60°
41°
16
55°
40°
17
58°
37°
18
62°
43°
19
65°
42°
20
63°
43°
21
60°
35°
22
65°
43°
23
58°
37°
24
64°
42°
25
65°
40°
26
59°
40°
27
63°
34°
28
52°
35°
29
56°
39°
30
57°
39°
31
61°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in North Sioux City
North Sioux City's October 2026 forecast shows daily high temperatures ranging from 52° to 86°, with overnight lows between 34° and 60°. The average high for October is 64° with an average low of 44°. 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 North Sioux City. See also: November | December | January.
