Waterloo · United States
Weather in Waterloo in May
In May the typical daytime high in Waterloo is 23.2 °C on average, from 20.2 °C at the start to 26.3 °C at the end of the month.
The last 10 years were 1.3 °C warmer than more than 40 years ago.
Click a day for more: afternoon and night, the usual range, records and how fast it is warming.
The average of the weather stations Cedar Rapids (79 km) and Rock Is L&D (183 km); nearer ones count more.