The weather in Mammoth in October is very cold with temperatures between -4°C and 6°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Mammoth during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Let it snow! You can expect Mammoth to be covered in white during the month of October. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Mammoth in October 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
6° / -4°
Rainy Days
7
Snowy Days
17
Dry Days
7
Rainfall
94
mm
Sun Hours
10.5
Hrs
