Weather forecast for 10 daysMammoth, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 57°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphW 267°
  • Humidity: 45%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
Tomorrow, clear skies and sunshine are also anticipated.
The maximum predicted temperature is a refreshing 57.2°F, while the minimum temperature will be an icy 35.6°F.
Tomorrow, the maximum temperature is expected to be a few degrees higher than the common October peak of 50.7°F.
Sunrise will be at 7:49 am and sunset at 6:37 pm; tomorrow's daylight will last for 10h and 48min.

10-day overview

Daily temperatures

Maximum temperature: 61°C.
Minimum temperature: 41°C.

Chance of precipitation

Highest chance: Friday 65%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 14mphSSW 207°
  • Humidity: 42%
  • UV index: 0
  • Sunrise: 7:47 am MDT
  • Sunset: 6:39 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 57°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphW 267°
  • Humidity: 45%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 61°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSW 214°
  • Humidity: 40%
  • UV index: 3
  • Sunrise: 7:50 am MDT
  • Sunset: 6:35 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 59°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 5mphW 274°
  • Humidity: 45%
  • UV index: 2
  • Sunrise: 7:51 am MDT
  • Sunset: 6:33 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 59°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 6mphSW 223°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:53 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 57°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0.08"
  • Wind: 7mphSW 216°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:54 am MDT
  • Sunset: 6:30 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 45°F
  • 23°F
Showers
Showers
  • Precip. probability: 65%
  • Precipitation: 0.35"
  • Wind: 8mphW 274°
  • Humidity: 82%
  • UV index: 1
  • Sunrise: 7:55 am MDT
  • Sunset: 6:28 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 41°F
  • 25°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 7mphSW 232°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:57 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 43°F
  • 25°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • Wind: 7mphWSW 247°
  • Humidity: 63%
  • UV index: 2
  • Sunrise: 7:58 am MDT
  • Sunset: 6:25 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 41°F
  • 25°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphWSW 238°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:59 am MDT
  • Sunset: 6:24 pm MDT
  • ▼
For the next ten days, a combination of dull, mostly clear and rain-soaked weather is predicted.
Rainfall is predicted for Thursday, Friday and next Sunday.
Temperature fluctuation will be noticeable over the next several days. The temperature is expected to swing from 41°F up to 60.8°F, while there will be also a marked difference in overnight low temperatures, as the lowest temperatures will be recorded between 23°F and 37.4°F.
Monday will be the warmest day, with a maximum temperature of 60.8°F; next Saturday and Monday, with the highest temperature of 41°F, will be the coldest days in Mammoth.
Updated: Oct 17, 2026 @ 23:20:52 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, skies are expected to be clear and full of sunshine.

Tomorrow, the highest temperature will be 57.2°F, while the lowest temperature will be 35.6°F.
The maximum temperature will be moderately higher than the average highest temperature of 50.7°F in October. The lowest temperature will be also moderately higher than the average low of 30.9°F.

On Sunday, in Mammoth, sunrise will be at 7:49 am and sunset at 6:37 pm (MDT).

In Mammoth, the length of the day tomorrow will be 10h and 48min.