In August, Casper typically sees daytime highs of 29.8°C and overnight lows around 11.5°C. Compared to the annual average high of 15.2°C, August runs +14.6°C.
August in Casper averages a daytime high of 29.8°C and an overnight low of 11.5°C.
August runs +14.6°C compared to Casper's annual average high of 15.2°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 29.8°C and cooler evenings around 11.5°C.