S
M
T
W
T
F
S
31
78°
63°
1
85°
58°
2
82°
67°
3
84°
65°
4
78°
63°
5
79°
61°
6
86°
67°
7
85°
67°
8
86°
65°
9
90°
68°
10
88°
67°
11
87°
65°
12
87°
59°
13
83°
65°
14
84°
64°
15
85°
62°
16
76°
54°
17
85°
64°
18
76°
62°
19
82°
65°
20
86°
58°
21
75°
56°
22
77°
65°
23
86°
68°
24
88°
65°
25
85°
61°
26
77°
63°
27
78°
66°
28
79°
67°
29
85°
67°
30
83°
66°
1
82°
67°
2
84°
68°
3
87°
68°
4
88°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sioux Falls
Sioux Falls's June 2026 forecast shows daily high temperatures ranging from 75° to 90°, with overnight lows between 54° and 68°. The average high for June is 83° with an average low of 64°. 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 Sioux Falls. See also: July | August | September.