In October, Allentown typically sees daytime highs of 18.0°C and overnight lows around 5.4°C. Compared to the annual average high of 16.2°C, October runs +1.8°C.
October in Allentown averages a daytime high of 18.0°C and an overnight low of 5.4°C.
October runs +1.8°C compared to Allentown's annual average high of 16.2°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 18.0°C and cooler evenings around 5.4°C.