City of Rocks National Reserve and Castle Rocks State Park have fully resumed normal operations. It is recommended that individuals who have not been fully vaccinated continue to wear a mask indoors. We are guided by the Idaho Department of Parks and Recreation (State of Idaho) response plan to the COVID-19 pandemic. For more information about the plan, vistit the following websites: Welcome to Idaho Rebounds: Our Path to Prosperity, Idaho Stages of Reopening
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Smoke from wildfires can affect air quality during summer months. View up to date AQI (Air Quality Index) from our Visitor Center's PurpleAir quality monitor. It takes real-time data and averages out the reading every ten minutes.
Summers are generally dry with temperatures ranging from lows in the upper 40's to highs in the upper 80's, but prepare for extremes. On rare summer nights in the upper elevations temperatures can dip into the 30's. On rare occasions, the Almo Valley can experience midday highs reaching 100° F. Afternoon thunderstorms are common in the summer months (June - August).
Last updated: September 3, 2021