The temperatures in Mammoth Lakes in August are quite cold with temperatures between 48°F and 75°F, warm clothes are a must.
You can expect about 3 to 8 days of rain in Mammoth Lakes 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.
Our weather forecast can give you a great sense of what weather to expect in Mammoth Lakes in August 2025.
If you’re planning to visit Mammoth Lakes in the near future, we highly recommend that you review the 14 day weather forecast for Mammoth Lakes before you arrive.
Temperatures
75° / 48°
Rainy Days
4
Snowy Days
0
Dry Days
27
Rainfall
0.55
in
Sun Hours
10.7
Hrs
