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Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Vandalia, IL
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January
Average Temperature
High
3°
Feels 0
Low
-6°
Feels -11
Average Precipitation
6 Days
Rain amount
32.1mm
Snow amount
8.4cm
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Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
4°
15
-1°
16
6°
17
-4°
18
-2°
19
-6°
20
-3°
21
0°
22
6°
23
8°
24
9°
25
-2°
26
-1°
27
0°
28
-3°
29
30
31
Forecast
Wednesday, January 14, 2026
Day
4°
Feels 0
Wind
37 km/h NW
Gust
56 km/h
Humidity
45%
P.O.P
30%
Night
-8°
Feels -14
Wind
24 km/h NW
Gust
36 km/h
Humidity
54%
P.O.P
0%
Historical Averages
Jan 14
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.