S
M
T
W
T
F
S
26
62°
49°
27
60°
47°
28
62°
41°
29
59°
42°
30
56°
39°
1
61°
43°
2
60°
42°
3
62°
45°
4
66°
44°
5
60°
44°
6
61°
41°
7
65°
48°
8
62°
51°
9
69°
51°
10
71°
50°
11
70°
53°
12
71°
53°
13
73°
49°
14
64°
45°
15
64°
49°
16
69°
53°
17
74°
55°
18
75°
49°
19
65°
44°
20
63°
44°
21
65°
52°
22
68°
54°
23
72°
56°
24
77°
57°
25
77°
56°
26
73°
50°
27
66°
52°
28
67°
53°
29
68°
57°
30
70°
55°
31
72°
52°
1
72°
49°
2
71°
52°
3
76°
50°
4
74°
52°
5
77°
51°
6
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Elgin
Elgin's May 2026 forecast shows daily high temperatures ranging from 56° to 77°, with overnight lows between 39° and 57°. The average high for May is 68° with an average low of 49°. 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 Elgin. See also: June | July | August.
