S
M
T
W
T
F
S
26
65°
38°
27
72°
31°
28
70°
40°
29
68°
46°
30
55°
46°
1
54°
42°
2
50°
35°
3
48°
38°
4
59°
44°
5
72°
53°
6
58°
46°
7
53°
33°
8
47°
34°
9
51°
38°
10
54°
40°
11
55°
39°
12
54°
40°
13
52°
39°
14
55°
38°
15
58°
39°
16
59°
37°
17
58°
37°
18
59°
45°
19
61°
46°
20
64°
45°
21
66°
47°
22
65°
42°
23
58°
42°
24
60°
43°
25
60°
40°
26
61°
42°
27
61°
44°
28
59°
47°
29
64°
49°
30
65°
47°
31
66°
43°
1
62°
42°
2
61°
42°
3
62°
43°
4
61°
43°
5
61°
44°
6
63°
44°
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 47° to 72°, with overnight lows between 33° and 53°. The average high for May is 59° with an average low of 42°. 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.
