S
M
T
W
T
F
S
26
77°
45°
27
69°
57°
28
62°
51°
29
60°
40°
30
61°
36°
1
56°
38°
2
60°
37°
3
69°
42°
4
78°
47°
5
58°
45°
6
58°
38°
7
63°
36°
8
64°
47°
9
78°
48°
10
67°
47°
11
69°
42°
12
81°
48°
13
69°
49°
14
72°
41°
15
78°
53°
16
78°
61°
17
84°
67°
18
74°
64°
19
74°
54°
20
69°
49°
21
72°
46°
22
72°
57°
23
77°
57°
24
80°
59°
25
83°
54°
26
84°
57°
27
89°
58°
28
87°
63°
29
86°
55°
30
84°
58°
31
80°
62°
1
83°
57°
2
85°
55°
3
83°
60°
4
84°
63°
5
85°
64°
6
86°
64°
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 80° to 86°, with overnight lows between 55° and 64°. The average high for May is 84° with an average low of 60°. 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.
