S
M
T
W
T
F
S
26
58°
43°
27
70°
39°
28
57°
47°
29
57°
51°
30
65°
43°
1
63°
37°
2
57°
43°
3
61°
42°
4
74°
52°
5
84°
61°
6
68°
49°
7
56°
40°
8
61°
41°
9
61°
40°
10
64°
42°
11
62°
44°
12
68°
47°
13
67°
50°
14
68°
48°
15
68°
47°
16
69°
49°
17
76°
54°
18
77°
55°
19
76°
54°
20
76°
55°
21
75°
55°
22
73°
48°
23
68°
46°
24
68°
48°
25
69°
49°
26
69°
48°
27
70°
48°
28
69°
49°
29
70°
49°
30
70°
51°
31
73°
58°
1
76°
56°
2
72°
54°
3
73°
55°
4
76°
58°
5
77°
56°
6
80°
60°
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 56° to 84°, with overnight lows between 40° and 61°. The average high for May is 70° with an average low of 50°. 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.
