In June, Castle Rock typically sees daytime highs of 26.1°C and overnight lows around 9.1°C. Compared to the annual average high of 16.8°C, June runs +9.3°C.
June in Castle Rock averages a daytime high of 26.1°C and an overnight low of 9.1°C.
June runs +9.3°C compared to Castle Rock's annual average high of 16.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 26.1°C and cooler evenings around 9.1°C.