The weather in Keystone in August is hot. The average temperatures are between 20°C and 27°C.
As it is almost never rain during August in Keystone the weather is perfect for hanging out outside and exploring all that Keystone has to offer.
Our weather forecast can give you a great sense of what weather to expect in Keystone in August 2025.
If you’re planning to visit Keystone in the near future, we highly recommend that you review the 14 day weather forecast for Keystone before you arrive.
Temperatures
27° / 20°
Rainy Days
0
Snowy Days
0
Dry Days
31
Rainfall
12
mm
Sun Hours
11.5
Hrs
