S
M
T
W
T
F
S
26
84°
57°
27
84°
61°
28
82°
63°
29
75°
58°
30
67°
50°
1
68°
45°
2
68°
45°
3
70°
39°
4
82°
52°
5
77°
57°
6
62°
50°
7
67°
45°
8
74°
53°
9
80°
62°
10
78°
58°
11
70°
47°
12
68°
48°
13
74°
59°
14
79°
62°
15
81°
62°
16
84°
64°
17
81°
63°
18
79°
56°
19
80°
59°
20
77°
60°
21
77°
55°
22
74°
52°
23
72°
52°
24
73°
53°
25
73°
55°
26
74°
53°
27
74°
53°
28
75°
55°
29
76°
57°
30
79°
62°
31
80°
64°
1
78°
63°
2
77°
62°
3
78°
59°
4
78°
60°
5
81°
64°
6
84°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Heartland
Heartland's May 2026 forecast shows daily high temperatures ranging from 62° to 84°, with overnight lows between 45° and 65°. The average high for May is 76° 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 Heartland. See also: June | July | August.
