In August, Green Bay typically sees daytime highs of 26.2°C and overnight lows around 13.4°C. Compared to the annual average high of 12.4°C, August runs +13.8°C.
August in Green Bay averages a daytime high of 26.2°C and an overnight low of 13.4°C.
August runs +13.8°C compared to Green Bay's annual average high of 12.4°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 26.2°C and cooler evenings around 13.4°C.