Weather forecast for 10 daysColstrip, MT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 77°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphWSW 257°
  • Humidity: 29%
  • UV index: 3
  • Sunrise: 7:26 am MDT
  • Sunset: 6:17 pm MDT
  • ▼
On Saturday, in Colstrip, sun-filled skies will remain for most of the day.
Temperature changes will be remarkable, ranging from a high of a warm 77°F to a low of a cold 41°F.
Temperatures are trending warmer, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise was at 7:26 am and sunset will be at 6:17 pm; the daylight will last for 10h and 51min.

Sunday Oct 18, 2026

  • 64°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphNNE 28°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:27 am MDT
  • Sunset: 6:15 pm MDT
  • ▼
On Sunday, October 18, sun-filled skies will remain for most of the day.
The temperature variation is predicted to range from a maximum of a breezy 64.4°F to a minimum of a wintry 41°F.
Tomorrow's high temperature is expected to be slightly warmer than the typical October peak of 56.1°F.
Sunrise will be at 7:27 am and sunset at 6:15 pm; tomorrow's daylight will last for 10h and 48min.

10-day overview

Daily temperatures

Warmest day: today 77°C.
Coldest day: Saturday 24.10. 52°C.

Chance of precipitation

Highest chance: Friday 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 77°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphWSW 257°
  • Humidity: 29%
  • UV index: 3
  • Sunrise: 7:26 am MDT
  • Sunset: 6:17 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphNNE 28°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:27 am MDT
  • Sunset: 6:15 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphSSE 150°
  • Humidity: 44%
  • UV index: 3
  • Sunrise: 7:29 am MDT
  • Sunset: 6:13 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 10mphWNW 298°
  • Humidity: 46%
  • UV index: 3
  • Sunrise: 7:30 am MDT
  • Sunset: 6:11 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphESE 123°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:31 am MDT
  • Sunset: 6:10 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 72°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphNW 308°
  • Humidity: 50%
  • UV index: 3
  • Sunrise: 7:33 am MDT
  • Sunset: 6:08 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 68°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.28"
  • Wind: 13mphW 280°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:34 am MDT
  • Sunset: 6:06 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 52°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 14mphNW 318°
  • Humidity: 53%
  • UV index: 2
  • Sunrise: 7:35 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 55°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 10mphE 92°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:37 am MDT
  • Sunset: 6:03 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 54°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphNW 307°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 7:38 am MDT
  • Sunset: 6:02 pm MDT
  • ▼
Weather models show that a combination of clear and cloud-filled weather is expected.
With a probability of 24%, rainfall is expected only on Friday. Anticipated precipitation will be light at 0.28".
Noticeable swings in temperature are expected throughout the forecast window. Highs will range from 51.8°F to 77°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 33.8°F up to 46.4°F.
Today is the warmest day, with a maximum temperature of 77°F; the lowest daytime temperature of the period will be reached on next Saturday, peaking at 51.8°F.
Updated: Oct 17, 2026 @ 15:27:41 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, sunshine will prevail for most of the day.

Today, the maximum temperature will be 77°F, while the minimum temperature will be 41°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 56.1°F in October. The lowest temperature today will be in line with the average low temperature.

On Saturday, in Colstrip, sunrise was at 7:26 am and sunset will be at 6:17 pm (MDT).

In Colstrip, today, there will be 10h and 51min of daylight.

On Sunday, expect brilliant sunshine under mostly clear skies.

Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 41°F.
The highest temperature will be relatively higher than the average maximum of 56.1°F in October. The lowest temperature will be in line with the average low of 39.6°F.

On Sunday, in Colstrip, sunrise will be at 7:27 am and sunset at 6:15 pm (MDT).

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