S
M
T
W
T
F
S
26
63°
48°
27
68°
49°
28
60°
50°
29
62°
41°
30
59°
35°
1
53°
41°
2
54°
33°
3
60°
39°
4
76°
49°
5
58°
46°
6
58°
44°
7
60°
37°
8
66°
49°
9
73°
52°
10
67°
47°
11
69°
44°
12
78°
39°
13
62°
44°
14
67°
39°
15
68°
45°
16
78°
59°
17
86°
60°
18
85°
65°
19
84°
66°
20
70°
54°
21
67°
49°
22
70°
51°
23
70°
55°
24
74°
55°
25
78°
48°
26
77°
55°
27
81°
63°
28
82°
58°
29
82°
53°
30
77°
55°
31
80°
49°
1
73°
52°
2
79°
51°
3
81°
54°
4
83°
61°
5
85°
62°
6
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Amboy
Amboy's May 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 51° and 64°. The average high for May is 81° with an average low of 57°. 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 Amboy. See also: June | July | August.