S
M
T
W
T
F
S
26
70°
45°
27
63°
45°
28
55°
39°
29
59°
37°
30
55°
36°
1
55°
34°
2
64°
28°
3
73°
45°
4
78°
43°
5
59°
34°
6
58°
36°
7
69°
44°
8
71°
44°
9
71°
47°
10
69°
43°
11
69°
45°
12
74°
47°
13
77°
47°
14
74°
48°
15
76°
54°
16
74°
53°
17
71°
48°
18
75°
51°
19
74°
47°
20
72°
50°
21
69°
45°
22
66°
44°
23
67°
46°
24
68°
46°
25
67°
47°
26
68°
46°
27
69°
47°
28
69°
50°
29
70°
57°
30
72°
55°
31
71°
49°
1
71°
52°
2
75°
57°
3
78°
59°
4
80°
60°
5
81°
60°
6
76°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mapleton
Mapleton's May 2026 forecast shows daily high temperatures ranging from 58° to 81°, with overnight lows between 34° and 61°. The average high for May is 71° with an average low of 49°. 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 Mapleton. See also: June | July | August.