In June, Waterloo typically sees daytime highs of 26.9°C and overnight lows around 14.2°C. Compared to the annual average high of 14.4°C, June runs +12.5°C.
June in Waterloo averages a daytime high of 26.9°C and an overnight low of 14.2°C.
June runs +12.5°C compared to Waterloo's annual average high of 14.4°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 26.9°C and cooler evenings around 14.2°C.