Weather forecast for 10 daysMarion, MT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 61°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphSW 226°
  • Humidity: 44%
  • UV index: 3
  • Sunrise: 8:01 am MDT
  • Sunset: 6:46 pm MDT
  • ▼
On Saturday, in Marion, patchy clouds will move across the sky, allowing for sunshine at times.
The daytime temperature will peak at a breezy 60.8°F, significantly contrasting with the night's low of a harsh 30.2°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 67.1°F, not October's.
Sunrise was at 8:01 am and sunset will be at 6:46 pm; the daylight will last for 10h and 45min.

Sunday Oct 18, 2026

  • 55°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 3mphESE 108°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 8:03 am MDT
  • Sunset: 6:44 pm MDT
  • ▼
Tomorrow, in Marion, sun and clouds will share the sky, creating a partly cloudy day.
The highest temperature will be a refreshing 55.4°F, while the lowest temperature will be a cold 32°F.
Tomorrow's high is expected to be slightly warmer than the average high in October of 50.4°F.
Sunrise will be at 8:03 am and sunset at 6:44 pm; tomorrow's daylight will last for 10h and 41min.

10-day overview

Daily temperatures

Warmest day: today 61°C.
Coldest period: Sunday - Monday 43°C.

Chance of precipitation

Highest chance: Friday 42%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 61°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphSW 226°
  • Humidity: 44%
  • UV index: 3
  • Sunrise: 8:01 am MDT
  • Sunset: 6:46 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 55°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 3mphESE 108°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 8:03 am MDT
  • Sunset: 6:44 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 57°F
  • 36°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphENE 77°
  • Humidity: 59%
  • UV index: 2
  • Sunrise: 8:04 am MDT
  • Sunset: 6:42 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 59°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphNE 43°
  • Humidity: 60%
  • UV index: 2
  • Sunrise: 8:06 am MDT
  • Sunset: 6:40 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 59°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphESE 112°
  • Humidity: 59%
  • UV index: 2
  • Sunrise: 8:07 am MDT
  • Sunset: 6:38 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 59°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0.08"
  • Wind: 5mphS 170°
  • Humidity: 64%
  • UV index: 2
  • Sunrise: 8:09 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 45°F
  • 28°F
AM Showers
AM Showers
  • Precip. probability: 42%
  • Precipitation: 0.04"
  • Wind: 9mphWSW 256°
  • Humidity: 79%
  • UV index: 2
  • Sunrise: 8:10 am MDT
  • Sunset: 6:35 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 45°F
  • 25°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 6mphS 174°
  • Humidity: 67%
  • UV index: 2
  • Sunrise: 8:12 am MDT
  • Sunset: 6:33 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 43°F
  • 27°F
AM Snow Showers
AM Snow Showers
  • Precip. probability: 36%
  • Precipitation: 0.08"
  • Wind: 5mphENE 70°
  • Humidity: 72%
  • UV index: 2
  • Sunrise: 8:13 am MDT
  • Sunset: 6:31 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 43°F
  • 27°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 4mphE 86°
  • Humidity: 72%
  • UV index: 2
  • Sunrise: 8:15 am MDT
  • Sunset: 6:30 pm MDT
  • ▼
The weather will be unstable for the next ten days, and a combination of primarily cloud-filled and occasionally mostly clear, wet and snowy weather is predicted.
With minimal precipitation of 0.08", rainfall is expected on Thursday and Friday.
With a probability of 36%, snowfall is forecasted only for next Sunday. Forecasted precipitation will be minimal at 0.08".
Temperature differences will be noticeable in the upcoming period. Highs will range from 42.8°F to 60.8°F, while the variation in nighttime lows will be also notably wide, as the lowest temperatures will be recorded between 24.8°F and 37.4°F.
Today is the warmest day, with a maximum temperature of 60.8°F; next Sunday and Monday, with the highest temperature of 42.8°F, will be the coldest days in Marion.
Updated: Oct 17, 2026 @ 15:24:14 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Marion, variable cloud cover will persist, but sunshine will break through.

Today, the highest temperature will be 60.8°F, while the lowest temperature will be 30.2°F.
The highest temperature today will be significantly higher than the average maximum of 50.4°F in October. Today, the lowest temperature will be in line with the average low temperature.

On Saturday, in Marion, sunrise was at 8:01 am and sunset will be at 6:46 pm (MDT).

In Marion, today, there will be 10h and 45min of daylight.

On Sunday, the sky will feature a blend of clouds and sunshine.

Tomorrow, the maximum temperature will be 55.4°F, while the minimum temperature will be 32°F.
The highest temperature tomorrow will be a few degrees higher than the average maximum temperature in October. The lowest temperature will be in line with the average low of 32.7°F.

On Sunday, in Marion, sunrise will be at 8:03 am and sunset at 6:44 pm (MDT).

In Marion, tomorrow, there will be 10h and 41min of daylight.