S
M
T
W
T
F
S
28
90°
58°
29
88°
60°
30
86°
64°
1
90°
65°
2
92°
66°
3
93°
61°
4
88°
62°
5
89°
61°
6
88°
62°
7
89°
63°
8
89°
62°
9
90°
62°
10
90°
65°
11
91°
62°
12
91°
60°
13
88°
60°
14
87°
61°
15
88°
64°
16
91°
68°
17
95°
69°
18
96°
69°
19
96°
70°
20
95°
71°
21
97°
69°
22
98°
69°
23
96°
68°
24
94°
66°
25
93°
65°
26
94°
67°
27
93°
65°
28
95°
67°
29
95°
68°
30
Hist. Avg.
92°
65°
31
Hist. Avg.
92°
65°
1
Hist. Avg.
92°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Winnetka
Winnetka's July 2026 forecast shows daily high temperatures ranging from 86° to 98°, with overnight lows between 58° and 71°. The average high for July is 92° with an average low of 65°. 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 Winnetka. See also: August | September | October.
