S
M
T
W
T
F
S
26
52°
34°
27
53°
32°
28
54°
37°
29
54°
33°
30
52°
34°
1
55°
35°
2
54°
34°
3
55°
33°
4
60°
44°
5
66°
37°
6
57°
35°
7
61°
45°
8
68°
46°
9
69°
46°
10
69°
40°
11
58°
39°
12
59°
38°
13
60°
44°
14
60°
41°
15
61°
46°
16
61°
45°
17
62°
46°
18
66°
42°
19
70°
39°
20
66°
40°
21
65°
41°
22
64°
40°
23
63°
39°
24
65°
41°
25
66°
47°
26
69°
46°
27
71°
41°
28
66°
43°
29
67°
52°
30
70°
43°
31
69°
45°
1
67°
52°
2
69°
45°
3
69°
46°
4
70°
54°
5
73°
46°
6
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hamilton
Hamilton's May 2026 forecast shows daily high temperatures ranging from 52° to 73°, with overnight lows between 32° and 54°. The average high for May is 63° with an average low of 42°. 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 Hamilton. See also: June | July | August.
