S
M
T
W
T
F
S
26
79°
58°
27
77°
57°
28
73°
56°
29
68°
56°
30
69°
57°
1
69°
57°
2
68°
56°
3
69°
57°
4
70°
58°
5
72°
57°
6
73°
59°
7
72°
59°
8
72°
60°
9
74°
60°
10
73°
59°
11
74°
60°
12
76°
61°
13
80°
61°
14
79°
60°
15
78°
61°
16
79°
58°
17
78°
61°
18
83°
58°
19
82°
58°
20
78°
57°
21
77°
63°
22
79°
64°
23
85°
63°
24
87°
65°
25
87°
65°
26
86°
66°
27
88°
66°
28
88°
65°
29
87°
66°
30
89°
61°
31
87°
66°
1
85°
66°
2
90°
67°
3
90°
67°
4
91°
68°
5
92°
60°
6
91°
59°
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 68° to 92°, with overnight lows between 56° and 68°. The average high for May is 80° with an average low of 61°. 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.
