S
M
T
W
T
F
S
28
95°
73°
29
97°
77°
30
93°
67°
1
87°
70°
2
89°
74°
3
82°
66°
4
86°
71°
5
88°
61°
6
89°
67°
7
92°
69°
8
89°
67°
9
85°
65°
10
86°
62°
11
90°
65°
12
92°
69°
13
97°
68°
14
103°
70°
15
97°
67°
16
92°
66°
17
91°
66°
18
92°
70°
19
94°
66°
20
86°
64°
21
87°
68°
22
89°
68°
23
89°
67°
24
88°
67°
25
88°
68°
26
87°
67°
27
86°
69°
28
90°
69°
29
90°
70°
30
89°
69°
31
90°
70°
1
90°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in North Sioux City
North Sioux City's July 2026 forecast shows daily high temperatures ranging from 85° to 103°, with overnight lows between 62° and 70°. The average high for July is 90° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in North Sioux City. See also: August | September | October.
