S
M
T
W
T
F
S
26
55°
36°
27
54°
36°
28
59°
36°
29
58°
39°
30
48°
40°
1
62°
33°
2
72°
40°
3
76°
47°
4
75°
47°
5
49°
33°
6
41°
30°
7
70°
41°
8
70°
51°
9
75°
41°
10
73°
49°
11
82°
50°
12
82°
49°
13
75°
50°
14
74°
49°
15
76°
50°
16
79°
47°
17
74°
50°
18
79°
52°
19
70°
41°
20
63°
43°
21
64°
44°
22
65°
45°
23
67°
46°
24
68°
47°
25
67°
44°
26
68°
43°
27
74°
48°
28
76°
50°
29
74°
48°
30
71°
47°
31
73°
49°
1
73°
50°
2
77°
51°
3
81°
52°
4
80°
48°
5
69°
46°
6
72°
47°
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 41° to 82°, with overnight lows between 30° and 52°. The average high for May is 72° with an average low of 47°. 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.
