S
M
T
W
T
F
S
27
76°
58°
28
80°
55°
29
87°
60°
30
90°
61°
1
92°
64°
2
93°
68°
3
94°
66°
4
81°
56°
5
70°
60°
6
75°
60°
7
83°
64°
8
93°
63°
9
101°
71°
10
101°
76°
11
102°
73°
12
98°
77°
13
88°
70°
14
84°
61°
15
90°
63°
16
94°
64°
17
91°
68°
18
87°
64°
19
95°
69°
20
98°
69°
21
102°
68°
22
104°
71°
23
102°
74°
24
97°
74°
25
96°
70°
26
99°
69°
27
100°
70°
28
100°
69°
29
95°
74°
30
104°
70°
31
102°
82°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Peoria
Peoria's May 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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.