About Royalton, IL

With a population of around 1,100, Royalton sits in Illinois, United States. The city operates in the Central Time Zone.

Expect a humid continental climate in Royalton: average highs of 88°F in midsummer, lows near 25°F in midwinter, and an annual mean of 56°F. Precipitation totals roughly 44 inches per year, concentrated around April, with February typically the driest month.