In August, Allentown typically sees daytime highs of 28.2°C and overnight lows around 15.9°C. Compared to the annual average high of 16.2°C, August runs +11.9°C.
August in Allentown averages a daytime high of 28.2°C and an overnight low of 15.9°C.
August runs +11.9°C compared to Allentown's annual average high of 16.2°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 28.2°C and cooler evenings around 15.9°C.