S
M
T
W
T
F
S
26
86°
65°
27
85°
67°
28
89°
67°
29
89°
68°
30
88°
67°
31
89°
68°
1
89°
67°
2
90°
68°
3
89°
67°
4
87°
66°
5
88°
67°
6
90°
66°
7
81°
63°
8
82°
65°
9
85°
65°
10
82°
67°
11
88°
67°
12
88°
68°
13
89°
67°
14
87°
66°
15
87°
66°
16
84°
64°
17
87°
63°
18
87°
64°
19
86°
63°
20
85°
64°
21
86°
62°
22
85°
54°
23
79°
51°
24
79°
54°
25
80°
54°
26
79°
55°
27
81°
59°
28
81°
62°
29
84°
62°
30
86°
61°
31
87°
61°
1
87°
60°
2
85°
55°
3
76°
60°
4
79°
61°
5
84°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sioux Center
Sioux Center's August 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 51° and 68°. The average high for August is 85° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Sioux Center. See also: September | October | November.
