S
M
T
W
T
F
S
26
53°
39°
27
64°
38°
28
63°
38°
29
59°
47°
30
63°
47°
1
64°
43°
2
63°
48°
3
60°
46°
4
74°
46°
5
82°
57°
6
74°
59°
7
67°
47°
8
68°
45°
9
72°
50°
10
72°
49°
11
61°
46°
12
65°
41°
13
74°
49°
14
67°
50°
15
67°
48°
16
83°
48°
17
90°
62°
18
88°
64°
19
98°
70°
20
94°
59°
21
62°
51°
22
61°
50°
23
55°
53°
24
63°
57°
25
69°
59°
26
75°
61°
27
74°
59°
28
75°
57°
29
75°
59°
30
76°
60°
31
77°
60°
1
75°
61°
2
76°
57°
3
77°
61°
4
78°
60°
5
78°
63°
6
77°
62°
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 55° to 94°, with overnight lows between 50° and 63°. The average high for May is 73° with an average low of 58°. 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.
