Depending on the time of year that you visit, the weather in Waterloo can be very pleasant or very miserable. This of course relates to the very warm summers and very cold winters that citizens of Waterloo experience every year.

The average temperatures for the four seasons in Waterloo are:

• Winter: -6° Celsius (21.2° Fahrenheit)
• Spring: 8° Celsius (46.4° Fahrenheit)
• Summer: 18° Celsius (64.4° Fahrenheit)
• Fall: 5° Celsius (41° Fahrenheit)

As you can see, you’ll definitely want to visit this area during the summer months, unless you’re a hardy individual that is resilient to the cold—or if you have plenty of warm clothing!

Waterloo Weather Forecast

5 Day Weather Forecast

Friday Friday night Saturday Sunny High 27°C A few clouds High 27°C Chance of showers High 27°C Sunday Monday Tuesday A mix of sun and cloud High 26°C Chance of showers High 25°C A mix of sun and cloud High 23°C

Detailed Waterloo Weather Forecast

Region of Waterloo Int'l Airport 06:00 AM EDT Friday 25 July 2008

Friday Sunny. Wind becoming southwest 20 km/h this afternoon. High 27. UV index 9 or very high. Friday night Clear. Increasing cloudiness overnight. Wind southwest 20 km/h becoming light this evening. Low 18. Saturday Cloudy. 60 percent chance of showers in the morning and afternoon with the risk of a thunderstorm. Wind becoming west 20 km/h in the afternoon. High 27. Sunday A mix of sun and cloud. Low 12. High 26. Monday A mix of sun and cloud with 40 percent chance of showers. Low 16. High 25. Tuesday A mix of sun and cloud. Low 13. High 23.