S
M
T
W
T
F
S
26
66°
36°
27
75°
40°
28
75°
50°
29
73°
50°
30
56°
46°
1
58°
41°
2
52°
42°
3
53°
41°
4
72°
47°
5
78°
54°
6
55°
43°
7
59°
42°
8
57°
37°
9
61°
34°
10
68°
47°
11
59°
37°
12
58°
39°
13
53°
43°
14
54°
49°
15
66°
52°
16
78°
53°
17
80°
56°
18
90°
51°
19
90°
71°
20
81°
58°
21
61°
42°
22
68°
38°
23
70°
44°
24
56°
50°
25
72°
53°
26
86°
52°
27
77°
60°
28
67°
55°
29
66°
48°
30
60°
41°
31
61°
44°
1
65°
44°
2
69°
46°
3
76°
53°
4
81°
56°
5
79°
56°
6
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bolton
Bolton's May 2026 forecast shows daily high temperatures ranging from 60° to 81°, with overnight lows between 41° and 57°. The average high for May is 71° with an average low of 50°. 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 Bolton. See also: June | July | August.
