S
M
T
W
T
F
S
26
88°
73°
27
88°
75°
28
88°
77°
29
81°
63°
30
68°
58°
1
61°
50°
2
73°
50°
3
77°
56°
4
81°
66°
5
86°
70°
6
83°
62°
7
77°
56°
8
82°
62°
9
81°
66°
10
85°
68°
11
89°
71°
12
87°
70°
13
85°
64°
14
87°
68°
15
88°
69°
16
88°
69°
17
87°
68°
18
88°
69°
19
88°
70°
20
89°
69°
21
86°
69°
22
82°
68°
23
83°
70°
24
87°
70°
25
85°
69°
26
84°
65°
27
83°
64°
28
84°
70°
29
86°
71°
30
87°
70°
31
87°
69°
1
88°
66°
2
87°
69°
3
88°
69°
4
91°
71°
5
91°
72°
6
90°
71°
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 61° to 91°, with overnight lows between 50° and 72°. The average high for May is 84° with an average low of 66°. 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.
