S
M
T
W
T
F
S
26
80°
57°
27
77°
56°
28
80°
58°
29
75°
58°
30
79°
57°
1
77°
58°
2
80°
60°
3
83°
60°
4
84°
59°
5
78°
54°
6
74°
52°
7
74°
52°
8
76°
56°
9
80°
58°
10
76°
53°
11
76°
53°
12
77°
56°
13
83°
61°
14
85°
61°
15
85°
62°
16
84°
63°
17
86°
63°
18
86°
62°
19
85°
63°
20
84°
63°
21
83°
62°
22
81°
61°
23
80°
58°
24
80°
62°
25
86°
61°
26
81°
59°
27
82°
62°
28
84°
64°
29
87°
66°
30
88°
65°
31
88°
66°
1
89°
62°
2
88°
61°
3
85°
61°
4
83°
62°
5
83°
61°
6
84°
61°
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 74° to 89°, with overnight lows between 52° and 66°. The average high for May is 82° with an average low of 60°. 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.
