S
M
T
W
T
F
S
28
91°
72°
29
92°
72°
30
94°
71°
1
95°
73°
2
91°
71°
3
94°
72°
4
92°
73°
5
90°
73°
6
91°
70°
7
88°
71°
8
89°
72°
9
92°
75°
10
93°
74°
11
87°
68°
12
85°
69°
13
89°
71°
14
90°
69°
15
90°
71°
16
95°
71°
17
91°
69°
18
94°
69°
19
91°
70°
20
92°
72°
21
91°
71°
22
88°
71°
23
89°
70°
24
87°
68°
25
88°
67°
26
87°
69°
27
87°
69°
28
88°
70°
29
87°
70°
30
89°
69°
31
90°
70°
1
90°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Winona
Winona's July 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 67° and 75°. The average high for July is 90° with an average low of 70°. 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 Winona. See also: August | September | October.