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Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
New Lenox, IL
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January
Average Temperature
High
-1°
Feels -5
Low
-9°
Feels -14
Average Precipitation
4 Days
Rain amount
9.9mm
Snow amount
8cm
Content continues below
Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
0°
5
7°
6
8°
7
9°
8
10°
9
9°
10
2°
11
-1°
12
2°
13
1°
14
2°
15
-1°
16
1°
17
3°
18
4°
19
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Sunday, January 4, 2026
Day
0°
Feels -4
Wind
15 km/h S
Gust
23 km/h
Humidity
59%
P.O.P
30%
Night
-2°
Feels -8
Wind
22 km/h SW
Gust
33 km/h
Humidity
80%
P.O.P
30%
Historical Averages
Jan 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.