Weather forecast for 10 daysFort Benton, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphENE 73°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:46 am MDT
  • Sunset: 6:28 pm MDT
  • ▼
On Sunday, October 18, occasional cloudiness will be present, but there will still be plenty of sun.
The temperature will peak at a breezy 64.4°F during the day, dropping to a low of a cold 35.6°F at night.
The anticipated high is warmer and better reflects September's normal temperature profile than that of October.
Sunrise will be at 7:46 am and sunset at 6:28 pm; the daylight will last for 10h and 42min.

10-day overview

Daily temperatures

Warmest day: Thursday 70°C.
Coldest period: Monday - Tuesday 41°C.

Chance of precipitation

Highest chance: Friday 67%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 64°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphENE 73°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:46 am MDT
  • Sunset: 6:28 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphSE 129°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:48 am MDT
  • Sunset: 6:26 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 63°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphWNW 293°
  • Humidity: 61%
  • UV index: 2
  • Sunrise: 7:49 am MDT
  • Sunset: 6:25 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphSSE 156°
  • Humidity: 64%
  • UV index: 2
  • Sunrise: 7:51 am MDT
  • Sunset: 6:23 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 70°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 10%
  • Precipitation: 0.04"
  • Wind: 7mphSW 223°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 7:52 am MDT
  • Sunset: 6:21 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 54°F
  • 36°F
Showers
Showers
  • Precip. probability: 67%
  • Precipitation: 0.16"
  • Wind: 17mphWNW 284°
  • Humidity: 72%
  • UV index: 1
  • Sunrise: 7:54 am MDT
  • Sunset: 6:19 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 48°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 13mphW 265°
  • Humidity: 61%
  • UV index: 2
  • Sunrise: 7:55 am MDT
  • Sunset: 6:18 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 45°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 12mphNE 46°
  • Humidity: 72%
  • UV index: 2
  • Sunrise: 7:57 am MDT
  • Sunset: 6:16 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 41°F
  • 28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 11mphWNW 287°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 7:58 am MDT
  • Sunset: 6:14 pm MDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 41°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 11mphW 265°
  • Humidity: 84%
  • UV index: 2
  • Sunrise: 8:00 am MDT
  • Sunset: 6:12 pm MDT
  • ▼
gloomy, dry and sunny and wet weather is predicted.
With a probability of 67%, rainfall is anticipated only on Friday. The precipitation will be light at 0.16".
Noticeable swings in temperature are expected over the next several days. Maximum temperatures are forecasted between 41°F and 69.8°F, while there will be also a marked difference in overnight low temperatures, as the lowest temperatures will be recorded between 28.4°F and 46.4°F.
The warmest day will be Thursday, with a maximum of 69.8°F; the coldest days will be next Monday and Tuesday, with a maximum of 41°F.
Updated: Oct 18, 2026 @ 12:01:54 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, clouds will come and go, but expect bright periods in between.

Today, the maximum temperature will be 64.4°F, while the minimum temperature will be 35.6°F.
Today, the highest temperature will be uncommonly higher than the average maximum of 54.9°F in October. Today, the lowest temperature will be in line with the average low temperature.

On Sunday, in Fort Benton, sunrise will be at 7:46 am and sunset at 6:28 pm (MDT).

In Fort Benton, the length of the day today will be 10h and 42min.