In October, Grand Junction typically sees daytime highs of 20.5°C and overnight lows around 4.5°C. Compared to the annual average high of 18.9°C, October runs +1.6°C.
October in Grand Junction averages a daytime high of 20.5°C and an overnight low of 4.5°C.
October runs +1.6°C compared to Grand Junction's annual average high of 18.9°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 20.5°C and cooler evenings around 4.5°C.