S
M
T
W
T
F
S
26
38°
24°
27
51°
22°
28
58°
27°
29
68°
34°
30
70°
40°
1
63°
44°
2
68°
39°
3
63°
46°
4
60°
41°
5
65°
36°
6
70°
39°
7
72°
47°
8
60°
41°
9
68°
43°
10
67°
46°
11
66°
45°
12
69°
41°
13
72°
50°
14
56°
42°
15
49°
37°
16
49°
34°
17
58°
40°
18
60°
41°
19
61°
37°
20
65°
40°
21
62°
38°
22
62°
39°
23
61°
39°
24
59°
38°
25
61°
38°
26
65°
42°
27
59°
40°
28
60°
37°
29
60°
39°
30
61°
40°
31
63°
45°
1
62°
45°
2
62°
41°
3
63°
45°
4
61°
44°
5
61°
45°
6
62°
42°
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 49° to 72°, with overnight lows between 34° and 50°. The average high for May is 61° with an average low of 41°. 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.
