S
M
T
W
T
F
S
27
26°
5°
28
21°
6°
29
24°
3°
30
23°
8°
31
24°
19°
1
37°
13°
2
36°
8°
3
28°
5°
4
21°
6°
5
25°
16°
6
32°
20°
7
35°
16°
8
39°
2°
9
38°
6°
10
18°
13°
11
25°
9°
12
28°
9°
13
23°
5°
14
23°
-1°
15
20°
4°
16
18°
10°
17
26°
13°
18
26°
13°
19
36°
3°
20
35°
4°
21
17°
11°
22
24°
15°
23
32°
16°
24
34°
18°
25
33°
18°
26
34°
17°
27
36°
17°
28
35°
16°
29
37°
16°
30
31°
14°
31
22°
8°
1
31°
1°
2
Hist. Avg.
33°
13°
3
Hist. Avg.
33°
13°
4
Hist. Avg.
33°
14°
5
Hist. Avg.
33°
14°
6
Hist. Avg.
34°
14°
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 17° to 39°, with overnight lows between -1° and 20°. The average high for January is 28° with an average low of 10°. 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.
