The temperatures in Mammoth in August are quite cold with temperatures between 6°C and 21°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Mammoth during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Mammoth can expect a few days of snow in August.
Our weather forecast can give you a great sense of what weather to expect in Mammoth in August 2025.
If you’re planning to visit Mammoth in the near future, we highly recommend that you review the 14 day weather forecast for Mammoth before you arrive.
Temperatures
21° / 6°
Rainy Days
7
Snowy Days
1
Dry Days
23
Rainfall
67
mm
Sun Hours
11.7
Hrs
