Weather forecast for 10 daysColstrip, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphNE 34°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:27 am MDT
  • Sunset: 6:15 pm MDT
  • ▼
Today, a crisp, sunny atmosphere is likely.
Expected temperature values will span from a breezy 64.4°F down to an icy 41°F.
The forecasted temperature is a few degrees higher than October's regular maximum of 56.1°F.
Sunrise will be at 7:27 am and sunset at 6:15 pm; the daylight will last for 10h and 48min.

10-day overview

Daily temperatures

Warmest day: Thursday 73°C.
Coldest period: Monday - Tuesday 50°C.

Chance of precipitation

Highest chance: Friday 65%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 64°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphNE 34°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:27 am MDT
  • Sunset: 6:15 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphSSE 148°
  • Humidity: 44%
  • UV index: 3
  • Sunrise: 7:29 am MDT
  • Sunset: 6:13 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 10mphWNW 303°
  • Humidity: 45%
  • UV index: 3
  • Sunrise: 7:30 am MDT
  • Sunset: 6:11 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphSE 126°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:31 am MDT
  • Sunset: 6:10 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphWNW 299°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:33 am MDT
  • Sunset: 6:08 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 64°F
  • 39°F
PM Showers
PM Showers
  • Precip. probability: 65%
  • Precipitation: 0"
  • Wind: 14mphWNW 294°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 7:34 am MDT
  • Sunset: 6:06 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 52°F
  • 32°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 15%
  • Precipitation: 0.28"
  • Wind: 13mphNW 306°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:35 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 54°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 10mphENE 66°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:37 am MDT
  • Sunset: 6:03 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 50°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphN 353°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:38 am MDT
  • Sunset: 6:02 pm MDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 50°F
  • 32°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 10mphNW 324°
  • Humidity: 67%
  • UV index: 2
  • Sunrise: 7:40 am MDT
  • Sunset: 6:00 pm MDT
  • ▼
Primarily clear and occasionally cloud-filled and showery weather is anticipated.
With a probability of 15%, rainfall is forecasted only for Saturday. Predicted precipitation will be light at 0.28".
Significant changes in temperature are expected across the forecast period. Forecast highs will fluctuate between 50°F and 73.4°F, while the difference in minimum temperatures will be also substantial, as nighttime lows are forecast to fall between 30.2°F and 50°F.
Thursday will be the warmest day, with a maximum temperature of 73.4°F; with a maximum temperature of 50°F, next Monday and Tuesday will be the coldest days.
Updated: Oct 18, 2026 @ 06:31:12 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, mostly clear skies and sunshine will create ideal daytime conditions.

Today, the highest temperature will be 64.4°F, while the lowest temperature will be 41°F.
Today, the highest temperature will be relatively higher than the average maximum temperature in October. The lowest temperature today will be in line with the average low temperature.

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

In Colstrip, today, there will be 10h and 48min of daylight.