In October, Waterloo typically sees daytime highs of 17.4°C and overnight lows around 4.1°C. Compared to the annual average high of 14.4°C, October runs +3.1°C.
October in Waterloo averages a daytime high of 17.4°C and an overnight low of 4.1°C.
October runs +3.1°C compared to Waterloo's annual average high of 14.4°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 17.4°C and cooler evenings around 4.1°C.