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
65°
46°
8
63°
50°
9
77°
51°
10
67°
42°
11
69°
46°
12
66°
49°
13
67°
47°
14
72°
56°
15
74°
54°
16
75°
56°
17
77°
60°
18
80°
61°
19
80°
59°
20
76°
54°
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 63° to 84°, with overnight lows between 42° and 64°. The average high for May is 74° with an average low of 55°. 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.
