S
M
T
W
T
F
S
26
56°
42°
27
56°
39°
28
63°
43°
29
57°
40°
30
57°
45°
1
64°
42°
2
58°
40°
3
61°
46°
4
67°
49°
5
70°
48°
6
68°
50°
7
71°
51°
8
72°
52°
9
72°
50°
10
71°
48°
11
61°
47°
12
62°
49°
13
66°
50°
14
63°
49°
15
65°
49°
16
70°
53°
17
71°
52°
18
68°
43°
19
67°
42°
20
64°
42°
21
65°
43°
22
65°
43°
23
66°
46°
24
66°
51°
25
69°
48°
26
70°
49°
27
72°
47°
28
68°
52°
29
68°
54°
30
81°
49°
31
72°
56°
1
71°
52°
2
73°
51°
3
72°
57°
4
78°
52°
5
79°
51°
6
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Oak Park
Oak Park's May 2026 forecast shows daily high temperatures ranging from 56° to 81°, with overnight lows between 39° and 57°. The average high for May is 67° 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 Oak Park. See also: June | July | August.
