S
M
T
W
T
F
S
26
84°
61°
27
81°
65°
28
73°
64°
29
81°
64°
30
72°
58°
1
66°
51°
2
69°
45°
3
73°
47°
4
78°
55°
5
80°
63°
6
76°
53°
7
75°
49°
8
74°
53°
9
75°
58°
10
78°
59°
11
81°
60°
12
82°
59°
13
81°
58°
14
84°
59°
15
84°
63°
16
85°
63°
17
85°
64°
18
84°
64°
19
84°
63°
20
85°
65°
21
86°
65°
22
86°
64°
23
84°
65°
24
80°
65°
25
85°
64°
26
85°
66°
27
81°
65°
28
82°
63°
29
84°
65°
30
87°
64°
31
85°
65°
1
87°
66°
2
88°
67°
3
88°
68°
4
89°
67°
5
83°
66°
6
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Winetka
Winetka's May 2026 forecast shows daily high temperatures ranging from 66° to 89°, with overnight lows between 45° and 68°. The average high for May is 82° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Winetka. See also: June | July | August.
