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Monthly
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Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Decatur, IL
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February
Average Temperature
High
2°
Feels -1
Low
-6°
Feels -12
Average Precipitation
5 Days
Rain amount
16.1mm
Snow amount
12.6cm
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Daily Historical Averages
February 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
2°
22
-2°
23
0°
24
8°
25
10°
26
6°
27
12°
28
14°
Forecast
Saturday, February 21, 2026
Day
2°
Feels -2
Wind
22 km/h NW
Gust
32 km/h
Humidity
42%
P.O.P
30%
Night
-7°
Feels -15
Wind
27 km/h NW
Gust
40 km/h
Humidity
67%
P.O.P
30%
Historical Averages
Feb 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.