S
M
T
W
T
F
S
26
66°
43°
27
68°
52°
28
66°
54°
29
55°
39°
30
57°
37°
1
48°
34°
2
55°
30°
3
66°
45°
4
79°
51°
5
57°
45°
6
53°
42°
7
57°
46°
8
62°
45°
9
64°
50°
10
57°
47°
11
57°
48°
12
59°
51°
13
65°
53°
14
61°
49°
15
65°
55°
16
67°
55°
17
68°
51°
18
64°
53°
19
69°
56°
20
68°
56°
21
66°
47°
22
63°
46°
23
63°
48°
24
64°
48°
25
64°
49°
26
65°
49°
27
64°
50°
28
65°
49°
29
66°
54°
30
68°
59°
31
72°
55°
1
68°
55°
2
72°
60°
3
74°
60°
4
76°
61°
5
76°
62°
6
78°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Chicago
South Chicago's May 2026 forecast shows daily high temperatures ranging from 53° to 79°, with overnight lows between 42° and 63°. The average high for May is 66° with an average low of 52°. 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 South Chicago. See also: June | July | August.
