S
M
T
W
T
F
S
26
84°
62°
27
76°
62°
28
67°
58°
29
83°
63°
30
75°
60°
1
66°
57°
2
68°
47°
3
72°
48°
4
78°
53°
5
82°
58°
6
81°
67°
7
72°
51°
8
72°
51°
9
77°
60°
10
81°
62°
11
80°
59°
12
78°
61°
13
79°
62°
14
81°
61°
15
80°
60°
16
77°
58°
17
79°
61°
18
80°
64°
19
82°
64°
20
80°
65°
21
78°
61°
22
80°
58°
23
76°
58°
24
77°
59°
25
78°
61°
26
79°
60°
27
78°
59°
28
78°
60°
29
80°
61°
30
81°
63°
31
80°
65°
1
82°
68°
2
81°
67°
3
81°
67°
4
82°
65°
5
85°
68°
6
86°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Forest Park
Forest Park's May 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 47° and 69°. The average high for May is 79° with an average low of 61°. 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 Forest Park. See also: June | July | August.
