S
M
T
W
T
F
S
26
69°
42°
27
67°
48°
28
61°
48°
29
51°
41°
30
48°
36°
1
46°
39°
2
49°
37°
3
57°
46°
4
69°
48°
5
53°
39°
6
52°
38°
7
51°
37°
8
56°
43°
9
58°
44°
10
58°
44°
11
60°
46°
12
61°
48°
13
63°
45°
14
61°
37°
15
62°
46°
16
62°
44°
17
63°
53°
18
66°
53°
19
65°
54°
20
70°
55°
21
70°
55°
22
67°
54°
23
67°
49°
24
64°
46°
25
65°
52°
26
67°
56°
27
69°
56°
28
67°
53°
29
66°
50°
30
68°
52°
31
67°
48°
1
67°
52°
2
69°
54°
3
68°
50°
4
68°
49°
5
69°
50°
6
69°
53°
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 49° to 70°, with overnight lows between 37° and 56°. The average high for May is 63° with an average low of 48°. 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.
