S
M
T
W
T
F
S
26
58°
38°
27
70°
35°
28
64°
36°
29
65°
48°
30
65°
48°
1
65°
42°
2
61°
45°
3
61°
44°
4
74°
45°
5
84°
57°
6
71°
59°
7
67°
48°
8
68°
50°
9
63°
51°
10
78°
53°
11
62°
44°
12
60°
43°
13
60°
49°
14
63°
50°
15
69°
51°
16
73°
51°
17
70°
51°
18
74°
55°
19
75°
55°
20
72°
52°
21
68°
49°
22
67°
50°
23
68°
49°
24
69°
49°
25
71°
55°
26
75°
56°
27
72°
54°
28
74°
54°
29
71°
51°
30
75°
57°
31
79°
59°
1
77°
60°
2
77°
57°
3
78°
60°
4
80°
61°
5
80°
61°
6
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Franklin Park
Franklin Park's May 2026 forecast shows daily high temperatures ranging from 60° to 81°, with overnight lows between 43° and 62°. The average high for May is 71° with an average low of 53°. 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 Franklin Park. See also: June | July | August.