S
M
T
W
T
F
S
26
56°
40°
27
56°
40°
28
46°
33°
29
61°
31°
30
55°
36°
1
56°
31°
2
69°
45°
3
72°
46°
4
74°
40°
5
57°
39°
6
54°
33°
7
68°
47°
8
78°
46°
9
69°
44°
10
70°
48°
11
69°
49°
12
68°
46°
13
70°
47°
14
69°
46°
15
62°
50°
16
64°
53°
17
65°
52°
18
72°
54°
19
74°
55°
20
74°
55°
21
70°
49°
22
65°
46°
23
65°
47°
24
64°
48°
25
65°
49°
26
66°
49°
27
65°
51°
28
67°
48°
29
69°
58°
30
79°
57°
31
69°
59°
1
79°
60°
2
78°
60°
3
74°
59°
4
73°
60°
5
72°
59°
6
72°
57°
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 54° to 79°, with overnight lows between 31° and 60°. The average high for May is 69° with an average low of 50°. 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.
