S
M
T
W
T
F
S
26
56°
28°
27
59°
31°
28
66°
36°
29
66°
44°
30
71°
31°
1
79°
38°
2
83°
51°
3
82°
41°
4
80°
39°
5
79°
44°
6
81°
46°
7
77°
44°
8
75°
36°
9
79°
38°
10
84°
35°
11
79°
41°
12
92°
36°
13
68°
44°
14
70°
36°
15
66°
39°
16
55°
35°
17
54°
33°
18
66°
31°
19
68°
35°
20
68°
40°
21
69°
43°
22
75°
48°
23
80°
52°
24
79°
50°
25
74°
44°
26
53°
40°
27
60°
38°
28
68°
42°
29
72°
41°
30
70°
41°
31
69°
39°
1
73°
43°
2
69°
40°
3
63°
37°
4
70°
46°
5
62°
40°
6
63°
36°
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 53° to 80°, with overnight lows between 36° and 52°. The average high for May is 69° 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.
