S
M
T
W
T
F
S
26
71°
33°
27
75°
35°
28
71°
37°
29
69°
38°
30
53°
45°
1
62°
36°
2
55°
40°
3
54°
33°
4
72°
36°
5
84°
49°
6
63°
47°
7
62°
34°
8
59°
32°
9
55°
47°
10
66°
42°
11
58°
39°
12
56°
36°
13
56°
40°
14
59°
43°
15
61°
45°
16
67°
45°
17
66°
44°
18
64°
45°
19
67°
45°
20
68°
43°
21
63°
40°
22
63°
40°
23
64°
42°
24
65°
46°
25
69°
48°
26
73°
49°
27
70°
44°
28
66°
42°
29
65°
42°
30
68°
45°
31
74°
51°
1
75°
51°
2
71°
48°
3
72°
51°
4
75°
52°
5
76°
53°
6
76°
52°
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 55° to 76°, with overnight lows between 32° and 53°. The average high for May is 66° with an average low of 44°. 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.
