S
M
T
W
T
F
S
26
79°
64°
27
81°
58°
28
84°
56°
29
89°
60°
30
91°
63°
1
90°
67°
2
93°
69°
3
96°
73°
4
78°
71°
5
80°
65°
6
84°
60°
7
95°
67°
8
102°
72°
9
103°
71°
10
107°
75°
11
109°
77°
12
103°
74°
13
102°
71°
14
100°
70°
15
98°
69°
16
99°
68°
17
98°
69°
18
94°
67°
19
95°
68°
20
94°
64°
21
87°
61°
22
88°
63°
23
88°
63°
24
90°
66°
25
96°
68°
26
99°
71°
27
97°
70°
28
95°
69°
29
94°
67°
30
97°
72°
31
100°
72°
1
94°
71°
2
94°
73°
3
101°
72°
4
96°
73°
5
94°
68°
6
93°
69°
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 87° to 109°, with overnight lows between 61° and 77°. The average high for May is 97° with an average low of 69°. 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.
