S
M
T
W
T
F
S
31
86°
67°
1
86°
60°
2
87°
65°
3
88°
58°
4
80°
66°
5
88°
61°
6
93°
59°
7
84°
68°
8
89°
68°
9
95°
68°
10
92°
64°
11
77°
59°
12
88°
51°
13
76°
56°
14
75°
53°
15
83°
56°
16
81°
62°
17
86°
56°
18
80°
58°
19
86°
60°
20
83°
63°
21
75°
53°
22
77°
55°
23
77°
59°
24
79°
57°
25
81°
61°
26
85°
60°
27
84°
62°
28
79°
61°
29
79°
57°
30
77°
56°
1
79°
65°
2
86°
59°
3
78°
58°
4
81°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in South Sioux City
South Sioux City's June 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 53° and 66°. The average high for June is 81° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in South Sioux City. See also: July | August | September.
