Monthly Historical AveragesDecorah, IA
Average Temperature
High
-4°
Feels -8
Low
-13°
Feels -19
Average Precipitation
2 Days
0mm
8cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, January 8, 2026
Day
6°Feels 3
Wind
20 km/h S
Gust
30 km/h
Humidity
81%
P.O.P
80%
Rain
10-15 mm
Night
1°Feels -6
Wind
36 km/h NW
Gust
54 km/h
Humidity
100%
P.O.P
100%
Rain
10-15 mm
Historical AveragesJan 8
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity