S
M
T
W
T
F
S
26
57°
46°
27
58°
44°
28
68°
44°
29
58°
42°
30
61°
46°
1
66°
46°
2
59°
42°
3
64°
48°
4
70°
51°
5
71°
52°
6
71°
52°
7
72°
54°
8
73°
54°
9
73°
51°
10
62°
49°
11
62°
48°
12
63°
50°
13
72°
51°
14
64°
49°
15
66°
50°
16
72°
55°
17
75°
56°
18
71°
45°
19
73°
45°
20
67°
47°
21
68°
46°
22
67°
48°
23
68°
47°
24
66°
53°
25
69°
57°
26
77°
53°
27
74°
55°
28
71°
61°
29
80°
58°
30
82°
50°
31
73°
57°
1
75°
55°
2
76°
57°
3
81°
59°
4
81°
53°
5
80°
50°
6
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dolton
Dolton's May 2026 forecast shows daily high temperatures ranging from 57° to 82°, with overnight lows between 42° and 61°. The average high for May is 70° with an average low of 51°. 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 Dolton. See also: June | July | August.