S
M
T
W
T
F
S
26
58°
33°
27
57°
27°
28
65°
27°
29
69°
39°
30
73°
34°
1
77°
33°
2
82°
37°
3
83°
39°
4
79°
38°
5
77°
40°
6
80°
38°
7
76°
44°
8
71°
33°
9
78°
35°
10
84°
37°
11
78°
37°
12
89°
38°
13
61°
49°
14
64°
46°
15
62°
45°
16
54°
39°
17
57°
37°
18
64°
33°
19
67°
38°
20
69°
41°
21
74°
42°
22
78°
46°
23
83°
44°
24
81°
45°
25
68°
38°
26
69°
37°
27
77°
40°
28
70°
39°
29
69°
37°
30
71°
40°
31
77°
43°
1
73°
42°
2
78°
48°
3
79°
50°
4
78°
48°
5
78°
48°
6
77°
49°
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 67° to 83°, with overnight lows between 37° and 50°. The average high for May is 75° with an average low of 43°. 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.
