S
M
T
W
T
F
S
26
70°
32°
27
59°
43°
28
55°
40°
29
67°
36°
30
77°
39°
1
76°
43°
2
76°
45°
3
81°
47°
4
76°
47°
5
66°
47°
6
58°
47°
7
64°
45°
8
64°
42°
9
69°
40°
10
64°
42°
11
72°
42°
12
81°
53°
13
64°
49°
14
60°
46°
15
55°
42°
16
56°
40°
17
63°
43°
18
67°
46°
19
69°
48°
20
71°
50°
21
78°
49°
22
66°
48°
23
68°
47°
24
67°
48°
25
66°
49°
26
67°
48°
27
69°
49°
28
63°
51°
29
63°
49°
30
65°
48°
31
70°
52°
1
71°
53°
2
63°
51°
3
63°
49°
4
64°
49°
5
63°
50°
6
63°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Jackson Park
Jackson Park's May 2026 forecast shows daily high temperatures ranging from 55° to 78°, with overnight lows between 40° and 53°. The average high for May is 65° with an average low of 48°. 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 Jackson Park. See also: June | July | August.