In July, St. Louis typically sees daytime highs of 31.9°C and overnight lows around 19.9°C. Compared to the annual average high of 19.0°C, July runs +12.8°C.
July in St. Louis averages a daytime high of 31.9°C and an overnight low of 19.9°C.
July runs +12.8°C compared to St. Louis's annual average high of 19.0°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 31.9°C and cooler evenings around 19.9°C.