S
M
T
W
T
F
S
26
67°
35°
27
61°
36°
28
64°
46°
29
69°
37°
30
79°
39°
1
69°
44°
2
71°
48°
3
89°
45°
4
72°
48°
5
68°
51°
6
68°
51°
7
72°
49°
8
70°
43°
9
78°
41°
10
73°
48°
11
78°
45°
12
74°
46°
13
65°
44°
14
66°
44°
15
61°
38°
16
61°
43°
17
65°
39°
18
72°
42°
19
73°
38°
20
72°
49°
21
84°
46°
22
82°
49°
23
77°
50°
24
81°
46°
25
59°
47°
26
63°
46°
27
71°
47°
28
77°
51°
29
65°
45°
30
67°
42°
31
72°
46°
1
84°
51°
2
82°
50°
3
79°
52°
4
77°
51°
5
76°
51°
6
75°
50°
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 59° to 84°, with overnight lows between 42° and 52°. The average high for May is 73° with an average low of 48°. 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.
