Weather forecast for 10 daysRim Rock Colony, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 54°F
  • 32°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSSE 154°
  • Humidity: 32%
  • UV index: 2
  • Sunrise: 7:53 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
On Sunday, October 18, sunshine is forecasted under mostly clear skies.
The highest anticipated temperature is a crisp 53.6°F, while the lowest temperature will be a cold 32°F.
The expected daily high is projected to match October's typical maximum of 51.4°F.
Sunrise was at 7:53 am and sunset will be at 6:32 pm; the daylight will last for 10h and 39min.

10-day overview

Daily temperatures

Warmest day: Thursday 66°C.
Coldest period: Monday - Tuesday 34°C.

Chance of precipitation

Highest chance: Friday 43%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 54°F
  • 32°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSSE 154°
  • Humidity: 32%
  • UV index: 2
  • Sunrise: 7:53 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 59°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphS 190°
  • Humidity: 56%
  • UV index: 2
  • Sunrise: 7:55 am MDT
  • Sunset: 6:31 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 54°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphN 353°
  • Humidity: 53%
  • UV index: 2
  • Sunrise: 7:57 am MDT
  • Sunset: 6:29 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 63°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 15mphS 186°
  • Humidity: 56%
  • UV index: 2
  • Sunrise: 7:58 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphSW 221°
  • Humidity: 49%
  • UV index: 2
  • Sunrise: 8:00 am MDT
  • Sunset: 6:25 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 43°F
  • 27°F
AM Showers
AM Showers
  • Precip. probability: 43%
  • Precipitation: 0.16"
  • Wind: 20mphNW 316°
  • Humidity: 80%
  • UV index: 1
  • Sunrise: 8:01 am MDT
  • Sunset: 6:23 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 41°F
  • 25°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphW 268°
  • Humidity: 67%
  • UV index: 2
  • Sunrise: 8:03 am MDT
  • Sunset: 6:21 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 39°F
  • 23°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • Wind: 13mphSSW 199°
  • Humidity: 71%
  • UV index: 1
  • Sunrise: 8:04 am MDT
  • Sunset: 6:19 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 34°F
  • 21°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphNW 318°
  • Humidity: 77%
  • UV index: 2
  • Sunrise: 8:06 am MDT
  • Sunset: 6:18 pm MDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 34°F
  • 23°F
PM Snow Showers
PM Snow Showers
  • Precip. probability: 33%
  • Precipitation: 0.28"
  • Wind: 14mphNW 308°
  • Humidity: 88%
  • UV index: 2
  • Sunrise: 8:08 am MDT
  • Sunset: 6:16 pm MDT
  • ▼
Over the course of the next ten days, expect shifting weather, and a mix of dull, dry and sunny, rainy and snowy weather is predicted.
Rain is predicted for Friday and next Sunday.
With a 33% probability, snowfall is forecasted only for next Tuesday. The precipitation will be moderate at 0.28".
Significant changes in temperature are expected throughout the forecast window. Highs will range from 33.8°F to 66.2°F, while the fluctuation in night temperatures will be also significant, as the overnight lows will vary from 21.2°F to 41°F.
The warmest day will be Thursday, with a maximum of 66.2°F; the coldest days will be next Monday and Tuesday, with a maximum of 33.8°F.
Updated: Oct 18, 2026 @ 17:29:31 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Rim Rock Colony, skies are expected to be clear and full of sunshine.

Today, the maximum temperature will be 53.6°F, while the minimum temperature will be 32°F.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature today will be a few degrees lower than the average low temperature.

On Sunday, in Rim Rock Colony, sunrise was at 7:53 am and sunset will be at 6:32 pm (MDT).

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