Currently: 58 °F. Clear. (Weather station: Waterloo Municipal Airport, USA). See more current weatherAnnual Weather Averages Near Waterloo
Averages are for Waterloo Municipal Airport, which is 5 miles from Waterloo.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Waterloo
High Temp: 84 °F
Low Temp: 10 °F
Mean Temp: 48 °F
Precipitation: 2.97"
Humidity: 72%
Dew Point: 39 °F
Wind: 15 mph
Pressure: 30.03 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Waterloo
High Temp: 28 °F
Low Temp: 10 °F
Mean Temp: 19 °F
Precipitation: 1.15"
Humidity: 80%
Dew Point: 14 °F
Wind: 17 mph
Pressure: 30.13 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Waterloo
High Temp: 31 °F
Low Temp: 14 °F
Mean Temp: 23 °F
Precipitation: 1.12"
Humidity: 78%
Dew Point: 17 °F
Wind: 17 mph
Pressure: 30.12 "Hg
Visibility: 8 mi
March Climate & Weather Averages in Waterloo
High Temp: 45 °F
Low Temp: 26 °F
Mean Temp: 35 °F
Precipitation: 1.87"
Humidity: 72%
Dew Point: 27 °F
Wind: 18 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Waterloo
High Temp: 60 °F
Low Temp: 36 °F
Mean Temp: 48 °F
Precipitation: 3.77"
Humidity: 64%
Dew Point: 36 °F
Wind: 19 mph
Pressure: 29.97 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Waterloo
High Temp: 72 °F
Low Temp: 49 °F
Mean Temp: 60 °F
Precipitation: 4.50"
Humidity: 65%
Dew Point: 48 °F
Wind: 17 mph
Pressure: 29.96 "Hg
Visibility: 9 mi
June Climate & Weather Averages in Waterloo
High Temp: 81 °F
Low Temp: 60 °F
Mean Temp: 70 °F
Precipitation: 5.70"
Humidity: 68%
Dew Point: 59 °F
Wind: 14 mph
Pressure: 29.91 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Waterloo
High Temp: 84 °F
Low Temp: 63 °F
Mean Temp: 73 °F
Precipitation: 4.30"
Humidity: 73%
Dew Point: 64 °F
Wind: 12 mph
Pressure: 29.96 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Waterloo
High Temp: 82 °F
Low Temp: 60 °F
Mean Temp: 71 °F
Precipitation: 4.25"
Humidity: 75%
Dew Point: 62 °F
Wind: 11 mph
Pressure: 29.99 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Waterloo
High Temp: 76 °F
Low Temp: 51 °F
Mean Temp: 64 °F
Precipitation: 3.12"
Humidity: 70%
Dew Point: 53 °F
Wind: 13 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Waterloo
High Temp: 62 °F
Low Temp: 39 °F
Mean Temp: 51 °F
Precipitation: 2.76"
Humidity: 69%
Dew Point: 40 °F
Wind: 15 mph
Pressure: 30.04 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Waterloo
High Temp: 46 °F
Low Temp: 27 °F
Mean Temp: 37 °F
Precipitation: 1.79"
Humidity: 73%
Dew Point: 28 °F
Wind: 17 mph
Pressure: 30.08 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Waterloo
High Temp: 33 °F
Low Temp: 16 °F
Mean Temp: 25 °F
Precipitation: 1.37"
Humidity: 80%
Dew Point: 19 °F
Wind: 16 mph
Pressure: 30.09 "Hg
Visibility: 8 mi