S
M
T
W
T
F
S
26
79°
64°
27
81°
57°
28
85°
62°
29
87°
63°
30
84°
63°
1
90°
68°
2
93°
70°
3
96°
66°
4
93°
65°
5
87°
61°
6
82°
61°
7
91°
66°
8
93°
64°
9
90°
65°
10
91°
62°
11
95°
68°
12
95°
67°
13
94°
68°
14
95°
68°
15
96°
70°
16
96°
69°
17
97°
70°
18
97°
70°
19
96°
69°
20
93°
69°
21
90°
67°
22
88°
64°
23
89°
69°
24
94°
70°
25
96°
71°
26
97°
70°
27
98°
72°
28
98°
72°
29
99°
71°
30
100°
73°
31
98°
72°
1
97°
72°
2
99°
73°
3
100°
73°
4
98°
72°
5
94°
72°
6
94°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Peoria
Peoria's May 2026 forecast shows daily high temperatures ranging from 81° to 100°, with overnight lows between 57° and 73°. The average high for May is 93° with an average low of 68°. 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 Peoria. See also: June | July | August.
