
Monthly Weather and Temperature Averages in Denali National Park
Most visitors come to Denali National Park in Alaska during the summer when daytime temperatures usually range from the 50s to 60s degrees Fahrenheit. However, temperatures can occasionally climb to 90 degrees Fahrenheit (32 degrees Celsius). The nights tend to cool down 10 to 20 degrees, leading to an average daily temperature range of about 22 degrees in the summer.