S
M
T
W
T
F
S
28
82°
57°
29
82°
63°
30
85°
60°
1
84°
61°
2
87°
59°
3
83°
65°
4
83°
67°
5
88°
68°
6
91°
68°
7
91°
61°
8
90°
59°
9
85°
57°
10
81°
64°
11
83°
66°
12
85°
65°
13
88°
66°
14
83°
68°
15
85°
70°
16
91°
62°
17
91°
68°
18
90°
69°
19
86°
65°
20
88°
66°
21
87°
60°
22
84°
59°
23
80°
59°
24
80°
60°
25
81°
60°
26
82°
64°
27
81°
65°
28
89°
62°
29
90°
67°
30
91°
61°
31
89°
63°
1
87°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Yankton
Yankton's July 2026 forecast shows daily high temperatures ranging from 80° to 91°, with overnight lows between 57° and 70°. The average high for July is 86° 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 July weather will actually feel in Yankton. See also: August | September | October.
