S
M
T
W
T
F
S
26
55°
39°
27
70°
37°
28
66°
50°
29
59°
48°
30
50°
34°
1
54°
30°
2
45°
27°
3
55°
40°
4
67°
55°
5
69°
56°
6
59°
42°
7
52°
34°
8
52°
34°
9
56°
41°
10
60°
40°
11
61°
41°
12
59°
41°
13
62°
43°
14
63°
46°
15
66°
45°
16
72°
49°
17
74°
50°
18
73°
48°
19
70°
45°
20
74°
49°
21
71°
48°
22
70°
41°
23
63°
41°
24
65°
42°
25
65°
43°
26
66°
42°
27
66°
42°
28
67°
43°
29
68°
42°
30
67°
43°
31
72°
52°
1
69°
49°
2
70°
45°
3
71°
50°
4
72°
51°
5
72°
48°
6
78°
54°
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 45° to 78°, with overnight lows between 27° and 56°. The average high for May is 66° with an average low of 45°. 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.
