In July, Sioux Falls typically sees daytime highs of 29.5°C and overnight lows around 15.8°C. Compared to the annual average high of 13.7°C, July runs +15.7°C.
July in Sioux Falls averages a daytime high of 29.5°C and an overnight low of 15.8°C.
July runs +15.7°C compared to Sioux Falls's annual average high of 13.7°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 29.5°C and cooler evenings around 15.8°C.