In September, Kansas City typically sees daytime highs of 26.9°C and overnight lows around 14.4°C. Compared to the annual average high of 18.5°C, September runs +8.3°C.
September in Kansas City averages a daytime high of 26.9°C and an overnight low of 14.4°C.
September runs +8.3°C compared to Kansas City's annual average high of 18.5°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 26.9°C and cooler evenings around 14.4°C.