In October, Saint Peters typically sees daytime highs of 30.0°C and overnight lows around 24.1°C. Compared to the annual average high of 29.2°C, October runs +0.8°C.
October in Saint Peters averages a daytime high of 30.0°C and an overnight low of 24.1°C.
October runs +0.8°C compared to Saint Peters's annual average high of 29.2°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 30.0°C and cooler evenings around 24.1°C.