Weather forecast for todayBig Sky, MT

Weather forecast for today

Current condition 12:51 pm MDT

  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 9mphWSW 240°
  • Humidity: 21%
  • Dewpoint: 19°F
  • Pressure: 30.07"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
Currently, a vibrant sun is lighting up the sky, with no sign of clouds.
The temperature is a breezy 60.8°F. The current temperature is nearly at the maximum anticipated 64.4°F for today.

Saturday Oct 17, 2026

  • 64°F
  • 30°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphS 190°
  • Humidity: 22%
  • UV index: 3
  • Sunrise: 7:44 am MDT
  • Sunset: 6:36 pm MDT
  • ▼
Today, in Big Sky, blue skies and warm sunshine will define the conditions.
A remarkable high of a comfortable 64.4°F during the day and a stark low of a subzero 30.2°F at night are expected.
Today, meteorological data suggests the high will feel more like September, based on a forecast of 64.4°F.
Sunrise was at 7:44 am and sunset will be at 6:36 pm; the daylight will last for 10h and 52min.

Hourly overview

Hourly temperatures

Warmest hour: 2 pm 64°C.
Coldest hour: 10 pm 41°C.

Chance of precipitation

Highest chance: 7 pm - 10 pm 1%.

Hourly weather forecast

  • 1 pm
  • 61°F
  • Feels like:
    61°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 181°
  • Humidity: 21%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 64°F
  • Feels like:
    63°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 182°
  • Humidity: 18%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 3 pm
  • 63°F
  • Feels like:
    63°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 195°
  • Humidity: 18%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 61°F
  • Feels like:
    59°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 198°
  • Humidity: 22%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 59°F
  • Feels like:
    57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 191°
  • Humidity: 24%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 55°F
  • Feels like:
    52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 188°
  • Humidity: 29%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:36 pm
  • 7 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphS 181°
  • Humidity: 36%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 46°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphS 177°
  • Humidity: 43%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 43°F
  • Feels like:
    39°F
Mostly Clear
Mostly Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphS 175°
  • Humidity: 48%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 41°F
  • Feels like:
    36°F
Mostly Clear
Mostly Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphS 185°
  • Humidity: 55%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 39°F
  • Feels like:
    34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphS 187°
  • Humidity: 60%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, primarily sun-filled and occasionally overcast weather is anticipated.
The temperature will be between a maximum of 64.4°F and a minimum of 39.2°F. The warmest part of the day will be around 2 pm.
The temperature today will feel more consistent with September's average high of 63.5°F than the usual for October. The lowest temperature today will be in line with October's average minimum.
Updated: Oct 17, 2026 @ 18:51:11 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (12:51 pm MDT) is 60.8°F.

On Saturday, mostly sunny and dry conditions will continue.

Today, the maximum temperature in Big Sky will be 64.4°F, while the minimum temperature will be 30.2°F.
The maximum temperature will be significantly higher than the average highest temperature of 45.5°F in October. Today, the lowest temperature will be in line with the average low temperature.

On Saturday, in Big Sky, sunrise was at 7:44 am and sunset will be at 6:36 pm (MDT).

In Big Sky, today, there will be 10h and 52min of daylight.