S
M
T
W
T
F
S
26
66°
42°
27
62°
48°
28
63°
45°
29
51°
34°
30
49°
29°
1
47°
26°
2
62°
24°
3
72°
45°
4
78°
36°
5
55°
36°
6
52°
27°
7
57°
28°
8
70°
25°
9
63°
36°
10
61°
27°
11
60°
27°
12
79°
40°
13
64°
39°
14
71°
31°
15
83°
46°
16
83°
51°
17
64°
59°
18
81°
62°
19
68°
41°
20
57°
37°
21
67°
41°
22
73°
46°
23
73°
52°
24
76°
53°
25
72°
51°
26
77°
53°
27
76°
52°
28
77°
50°
29
72°
51°
30
75°
55°
31
76°
54°
1
76°
56°
2
75°
55°
3
67°
52°
4
68°
51°
5
72°
56°
6
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Plainfield
Plainfield's May 2026 forecast shows daily high temperatures ranging from 57° to 83°, with overnight lows between 37° and 62°. The average high for May is 73° with an average low of 52°. 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 Plainfield. See also: June | July | August.
