In August, Bellevue typically sees daytime highs of 30.0°C and overnight lows around 17.3°C. Compared to the annual average high of 16.7°C, August runs +13.4°C.
August in Bellevue averages a daytime high of 30.0°C and an overnight low of 17.3°C.
August runs +13.4°C compared to Bellevue's annual average high of 16.7°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 30.0°C and cooler evenings around 17.3°C.