S
M
T
W
T
F
S
26
68°
43°
27
66°
52°
28
62°
51°
29
58°
37°
30
60°
34°
1
51°
36°
2
55°
29°
3
66°
41°
4
80°
46°
5
57°
46°
6
57°
35°
7
62°
32°
8
67°
46°
9
75°
47°
10
66°
42°
11
61°
40°
12
78°
38°
13
63°
38°
14
69°
35°
15
75°
60°
16
81°
63°
17
85°
67°
18
80°
68°
19
74°
52°
20
64°
47°
21
64°
49°
22
71°
52°
23
77°
54°
24
74°
58°
25
75°
60°
26
74°
59°
27
73°
60°
28
75°
53°
29
73°
57°
30
68°
54°
31
68°
52°
1
69°
50°
2
68°
50°
3
69°
52°
4
72°
60°
5
79°
62°
6
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in New Lenox
New Lenox's May 2026 forecast shows daily high temperatures ranging from 64° to 85°, with overnight lows between 47° and 68°. The average high for May is 73° with an average low of 57°. 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 New Lenox. See also: June | July | August.
