S
M
T
W
T
F
S
26
108°
79°
27
108°
77°
28
103°
83°
29
99°
69°
30
104°
77°
1
98°
73°
2
101°
79°
3
98°
76°
4
90°
66°
5
91°
67°
6
96°
69°
7
92°
69°
8
98°
73°
9
98°
75°
10
100°
79°
11
100°
81°
12
102°
82°
13
103°
77°
14
105°
74°
15
104°
79°
16
105°
77°
17
107°
79°
18
110°
79°
19
113°
83°
20
112°
83°
21
110°
89°
22
110°
85°
23
106°
83°
24
109°
84°
25
110°
95°
26
N/A
27
111°
90°
28
110°
84°
29
100°
79°
30
94°
78°
31
95°
81°
1
98°
82°
2
104°
83°
3
108°
87°
4
110°
88°
5
104°
87°
6
105°
87°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in IIT
IIT's May 2026 forecast shows daily high temperatures ranging from 94° to 111°, with overnight lows between 78° and 90°. The average high for May is 104° with an average low of 84°. 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 IIT. See also: June | July | August.
