S
M
T
W
T
F
S
27
27°
6°
28
22°
6°
29
27°
4°
30
24°
8°
31
26°
17°
1
39°
12°
2
37°
6°
3
33°
4°
4
21°
6°
5
25°
13°
6
33°
17°
7
36°
14°
8
40°
-1°
9
40°
1°
10
19°
10°
11
27°
5°
12
28°
4°
13
22°
2°
14
23°
-4°
15
20°
0°
16
17°
6°
17
25°
10°
18
26°
12°
19
38°
1°
20
36°
1°
21
18°
8°
22
23°
12°
23
32°
13°
24
35°
15°
25
34°
15°
26
36°
14°
27
38°
15°
28
37°
13°
29
40°
14°
30
34°
12°
31
31°
0°
1
Hist. Avg.
31°
8°
2
Hist. Avg.
31°
8°
3
Hist. Avg.
31°
8°
4
Hist. Avg.
31°
9°
5
Hist. Avg.
32°
9°
6
Hist. Avg.
32°
9°
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 40°, with overnight lows between -4° and 17°. The average high for January is 30° with an average low of 8°. 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.
