Monthly Historical AveragesMason City, IL
Average Temperature
High
2°
Feels -1
Low
-7°
Feels -12
Average Precipitation
6 Days
18.9mm
14.2cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, February 22, 2026
Day
-3°Feels -10
Wind
32 km/h NW
Gust
48 km/h
Humidity
36%
P.O.P
30%
Night
-10°Feels -18
Wind
28 km/h NW
Gust
43 km/h
Humidity
64%
P.O.P
30%
Historical AveragesFeb 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity