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Hourly
7 Days
14 Days
Monthly
°C
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°Celsius
°Fahrenheit
Monthly Historical Averages
Greenoak, IL
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Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
1°
5
9°
6
9°
7
10°
8
10°
9
8°
10
0°
11
-1°
12
3°
13
1°
14
2°
15
-1°
16
2°
17
3°
18
4°
19
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Sunday, January 4, 2026
Day
1°
Feels -3
Wind
18 km/h S
Gust
27 km/h
Humidity
55%
P.O.P
30%
Night
-1°
Feels -7
Wind
24 km/h SW
Gust
36 km/h
Humidity
93%
P.O.P
20%
Historical Averages
Jan 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
January
Average Temperature
High
-2°
Feels -6
Low
-10°
Feels -17
Average Precipitation
5 Days
Rain amount
8.2mm
Snow amount
16.5cm