S
M
T
W
T
F
S
27
39°
19°
28
35°
22°
29
37°
21°
30
37°
30°
31
42°
30°
1
51°
23°
2
47°
20°
3
36°
20°
4
34°
22°
5
37°
32°
6
46°
34°
7
49°
26°
8
51°
14°
9
50°
20°
10
30°
26°
11
39°
22°
12
40°
19°
13
35°
19°
14
33°
13°
15
34°
19°
16
32°
24°
17
42°
29°
18
41°
26°
19
50°
19°
20
45°
19°
21
33°
26°
22
39°
29°
23
45°
30°
24
47°
32°
25
47°
33°
26
50°
30°
27
50°
30°
28
46°
27°
29
48°
28°
30
44°
25°
31
39°
22°
1
50°
18°
2
Hist. Avg.
41°
22°
3
Hist. Avg.
41°
22°
4
Hist. Avg.
41°
22°
5
Hist. Avg.
41°
22°
6
Hist. Avg.
41°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Plainfield
Plainfield's January 2027 forecast shows daily high temperatures ranging from 30° to 51°, with overnight lows between 13° and 34°. The average high for January is 42° with an average low of 24°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Plainfield. See also: February | March | April.
