S
M
T
W
T
F
S
26
65°
40°
27
67°
52°
28
63°
50°
29
56°
36°
30
56°
33°
1
49°
33°
2
55°
28°
3
64°
41°
4
80°
45°
5
56°
45°
6
58°
38°
7
59°
33°
8
65°
42°
9
74°
44°
10
62°
40°
11
55°
40°
12
76°
39°
13
60°
41°
14
64°
35°
15
73°
46°
16
81°
63°
17
85°
66°
18
79°
68°
19
78°
49°
20
62°
47°
21
62°
47°
22
66°
52°
23
75°
58°
24
76°
57°
25
74°
56°
26
75°
57°
27
77°
60°
28
76°
56°
29
74°
53°
30
78°
59°
31
79°
58°
1
76°
60°
2
78°
58°
3
71°
55°
4
70°
53°
5
73°
59°
6
78°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Olympia Fields
Olympia Fields's May 2026 forecast shows daily high temperatures ranging from 62° to 85°, with overnight lows between 47° and 68°. The average high for May is 75° with an average low of 57°. 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 Olympia Fields. See also: June | July | August.
