The temperatures in Grand Canyon in August are comfortable with low of 19°C and and high up to 28°C.
You can expect a few rainy days in Grand Canyon during August, but usually the weather is comfortable in August.
Our weather forecast can give you a great sense of what weather to expect in Grand Canyon in August 2025.
If you’re planning to visit Grand Canyon in the near future, we highly recommend that you review the 14 day weather forecast for Grand Canyon before you arrive.
Temperatures
28° / 19°
Rainy Days
2
Snowy Days
0
Dry Days
29
Rainfall
39
mm
Sun Hours
11.8
Hrs