The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Deer Park, IL
Content continues below
January
Average Temperature
High
-2°
Feels -6
Low
-10°
Feels -16
Average Precipitation
7 Days
Rain amount
0.9mm
Snow amount
26.5cm
Content continues below
Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
0°
12
6°
13
8°
14
1°
15
-4°
16
-1°
17
-4°
18
-4°
19
-7°
20
-5°
21
-4°
22
-2°
23
-2°
24
-3°
25
-3°
26
27
28
29
30
31
Forecast
Sunday, January 11, 2026
Day
0°
Feels -5
Wind
27 km/h NW
Gust
41 km/h
Humidity
59%
P.O.P
30%
Night
-4°
Feels -11
Wind
24 km/h SW
Gust
36 km/h
Humidity
80%
P.O.P
10%
Historical Averages
Jan 11
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.