S
M
T
W
T
F
S
26
64°
35°
27
46°
37°
28
57°
34°
29
63°
35°
30
64°
39°
1
67°
40°
2
73°
45°
3
75°
47°
4
66°
43°
5
63°
40°
6
70°
43°
7
77°
48°
8
79°
48°
9
75°
45°
10
79°
50°
11
72°
46°
12
76°
48°
13
79°
49°
14
73°
45°
15
66°
42°
16
65°
40°
17
67°
42°
18
68°
43°
19
66°
42°
20
67°
41°
21
68°
42°
22
69°
43°
23
68°
42°
24
69°
42°
25
69°
43°
26
70°
41°
27
71°
42°
28
76°
48°
29
80°
52°
30
82°
55°
31
80°
51°
1
80°
52°
2
79°
48°
3
82°
52°
4
84°
55°
5
85°
56°
6
84°
55°
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 63° to 85°, with overnight lows between 40° and 56°. The average high for May is 73° with an average low of 46°. 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.