Monthly Historical AveragesWaterloo, IA
Average Temperature
High
22°
Feels 22
Low
10°
Feels 9
Average Precipitation
13 Days
131.7mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, May 17, 2026
Day
26°Feels 26
Wind
31 km/h S
Gust
47 km/h
Humidity
65%
P.O.P
80%
Rain
~5 mm
Night
19°Feels 19
Wind
35 km/h S
Gust
53 km/h
Humidity
94%
P.O.P
80%
Rain
~5 mm
Historical AveragesMay 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity