S
M
T
W
T
F
S
27
39°
19°
28
38°
21°
29
39°
18°
30
38°
21°
31
37°
25°
1
43°
17°
2
47°
11°
3
44°
13°
4
28°
17°
5
31°
17°
6
33°
21°
7
34°
23°
8
40°
21°
9
39°
20°
10
36°
24°
11
41°
27°
12
44°
24°
13
40°
22°
14
36°
24°
15
Hist. Avg.
36°
18°
16
Hist. Avg.
36°
18°
17
Hist. Avg.
36°
18°
18
Hist. Avg.
36°
18°
19
Hist. Avg.
36°
18°
20
Hist. Avg.
36°
17°
21
Hist. Avg.
36°
17°
22
Hist. Avg.
36°
17°
23
Hist. Avg.
36°
17°
24
Hist. Avg.
36°
17°
25
Hist. Avg.
36°
17°
26
Hist. Avg.
36°
17°
27
Hist. Avg.
36°
17°
28
Hist. Avg.
36°
17°
29
Hist. Avg.
36°
17°
30
Hist. Avg.
36°
17°
31
Hist. Avg.
36°
17°
1
Hist. Avg.
36°
17°
2
Hist. Avg.
36°
17°
3
Hist. Avg.
36°
18°
4
Hist. Avg.
37°
18°
5
Hist. Avg.
37°
18°
6
Hist. Avg.
37°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Plainfield
Plainfield's January 2027 forecast shows daily high temperatures ranging from 28° to 47°, with overnight lows between 11° and 27°. The average high for January is 38° with an average low of 20°. 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.
