In June, St. Louis typically sees daytime highs of 29.7°C and overnight lows around 17.7°C. Compared to the annual average high of 19.0°C, June runs +10.7°C.
June in St. Louis averages a daytime high of 29.7°C and an overnight low of 17.7°C.
June runs +10.7°C compared to St. Louis's annual average high of 19.0°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 29.7°C and cooler evenings around 17.7°C.