Weather forecast for todayMammoth, MT

Weather forecast for today

Current condition 4:19 am MDT

  • 37°F
  • Feels like:
    34°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 5mphSSW 210°
  • Humidity: 73%
  • Dewpoint: 28°F
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
At the moment, perfect visibility under a vast, clear sky.
The temperature is a wintry 37.4°F, the real-feel reading is computed to be a cold 33.8°F. The current temperature is near the lowest expected 41°F for today.

Wednesday Oct 21, 2026

  • 61°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 8mphSW 224°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:53 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
Today, in Mammoth, mainly sunny skies with just a few high clouds are anticipated.
The maximum expected temperature is a comfortable 60.8°F, while the minimum temperature will be a cold 41°F.
The forecast high of 60.8°F aligns more closely with September's typical high of 67.6°F than with October's usual 50.7°F.
Sunrise will be at 7:53 am and sunset at 6:32 pm; the daylight will last for 10h and 39min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 5 pm 59°C.
Coldest period: 5 am - 7 am 37°C.

Chance of precipitation

Highest chance: 7 pm 5%.

Hourly weather forecast

  • 6 am
  • 37°F
  • Feels like:
    34°F
Mostly Clear
Mostly Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSW 208°
  • Humidity: 78%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:53 am
  • 8 am
  • 37°F
  • Feels like:
    34°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphSSW 205°
  • Humidity: 80%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 45°F
  • Feels like:
    43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSW 222°
  • Humidity: 73%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphWSW 241°
  • Humidity: 55%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphWSW 236°
  • Humidity: 45%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 59°F
  • Feels like:
    57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSW 230°
  • Humidity: 41%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 57°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSW 221°
  • Humidity: 45%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:32 pm
  • 8 pm
  • 52°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 8mphSSW 205°
  • Humidity: 56%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSW 215°
  • Humidity: 61%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Mammoth, a combination of sun-filled and cloudy weather is forecasted.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 59°F. The warmest part of the day will be from 3 pm to 5 pm.
The highest temperature is more comparable to September's average maximum of 67.6°F than October's usual of 50.7°F. The expected low will be also more in line with what’s typical in September than in October.
Updated: Oct 21, 2026 @ 10:19:32 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 4:19 am MDT is 37.4°F.

On Wednesday, in Mammoth, dry and sunny weather is expected throughout the day.

Today, the maximum temperature will be 60.8°F, while the minimum temperature will be 41°F.
The highest temperature will be uncommonly higher than the average maximum of 50.7°F in October. The lowest temperature will be also significantly higher than the average low of 30.9°F.

On Wednesday, in Mammoth, sunrise will be at 7:53 am and sunset at 6:32 pm (MDT).

Today, the daylight will last for 10h and 39min.