S
M
T
W
T
F
S
26
54°
40°
27
59°
39°
28
64°
29°
29
68°
37°
30
70°
36°
1
70°
37°
2
74°
35°
3
79°
33°
4
67°
43°
5
67°
38°
6
74°
43°
7
82°
37°
8
87°
41°
9
85°
45°
10
87°
45°
11
90°
42°
12
91°
43°
13
82°
61°
14
85°
43°
15
91°
65°
16
84°
60°
17
75°
48°
18
72°
50°
19
79°
54°
20
86°
49°
21
91°
53°
22
90°
51°
23
85°
54°
24
81°
53°
25
81°
49°
26
82°
51°
27
86°
52°
28
84°
48°
29
76°
44°
30
79°
45°
31
84°
47°
1
87°
49°
2
88°
54°
3
89°
55°
4
89°
47°
5
80°
48°
6
83°
50°
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 72° to 91°, with overnight lows between 44° and 65°. The average high for May is 84° with an average low of 51°. 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.
