S
M
T
W
T
F
S
27
64°
57°
28
60°
55°
29
67°
55°
30
69°
54°
1
77°
54°
2
84°
57°
3
72°
49°
4
64°
43°
5
69°
49°
6
60°
37°
7
65°
32°
8
73°
43°
9
69°
38°
10
65°
37°
11
59°
42°
12
71°
51°
13
63°
52°
14
79°
53°
15
64°
44°
16
69°
45°
17
51°
27°
18
53°
31°
19
61°
38°
20
63°
41°
21
61°
40°
22
59°
39°
23
62°
40°
24
58°
39°
25
59°
41°
26
58°
38°
27
59°
39°
28
60°
36°
29
51°
31°
30
58°
38°
31
54°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Plainfield
Plainfield's October 2026 forecast shows daily high temperatures ranging from 51° to 69°, with overnight lows between 27° and 45°. The average high for October is 59° with an average low of 38°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Plainfield. See also: November | December | January.
