S
M
T
W
T
F
S
26
72°
63°
27
73°
68°
28
72°
66°
29
70°
66°
30
72°
66°
1
75°
68°
2
72°
66°
3
77°
66°
4
66°
63°
5
72°
64°
6
73°
68°
7
73°
66°
8
79°
68°
9
73°
68°
10
79°
70°
11
75°
70°
12
75°
68°
13
73°
68°
14
75°
73°
15
75°
72°
16
73°
68°
17
73°
66°
18
75°
68°
19
75°
66°
20
75°
66°
21
77°
68°
22
79°
70°
23
79°
70°
24
79°
72°
25
79°
70°
26
81°
72°
27
80°
72°
28
81°
72°
29
77°
69°
30
78°
72°
31
76°
69°
1
76°
69°
2
79°
71°
3
77°
69°
4
80°
66°
5
79°
73°
6
80°
72°
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 76° to 81°, with overnight lows between 66° and 73°. The average high for May is 78° with an average low of 70°. 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.
