In October, Waterloo typically sees daytime highs of 13.9°C and overnight lows around 3.3°C. Compared to the annual average high of 11.9°C, October runs +2.1°C.
October in Waterloo averages a daytime high of 13.9°C and an overnight low of 3.3°C.
October runs +2.1°C compared to Waterloo's annual average high of 11.9°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 13.9°C and cooler evenings around 3.3°C.