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
59°
40°
7
62°
46°
8
65°
46°
9
77°
54°
10
63°
42°
11
66°
48°
12
69°
49°
13
73°
52°
14
76°
56°
15
77°
54°
16
67°
54°
17
71°
53°
18
73°
54°
19
77°
53°
20
69°
51°
21
68°
49°
22
68°
50°
23
70°
52°
24
71°
55°
25
71°
53°
26
72°
52°
27
73°
53°
28
75°
53°
29
76°
56°
30
79°
59°
31
81°
61°
1
81°
59°
2
78°
61°
3
82°
63°
4
83°
64°
5
84°
64°
6
81°
63°
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 40° and 64°. The average high for May is 73° with an average low of 54°. 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.
