Weather forecast for 10 daysHeart Butte, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 55°F
  • 32°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSE 144°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:56 am MDT
  • Sunset: 6:36 pm MDT
  • ▼
On Sunday, October 18, skies are expected to be clear and full of sunshine.
Temperatures are predicted to range from a maximum of a moderate 55.4°F to a minimum of a cold 32°F.
Today's high temperature is expected to be relatively higher than the typical October peak of 51.4°F.
Sunrise will be at 7:56 am and sunset at 6:36 pm; the daylight will last for 10h and 41min.

10-day overview

Daily temperatures

Warmest day: Wednesday 66°C.
Coldest day: Monday 26.10. 30°C.

Chance of precipitation

Highest chance: Friday 45%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 55°F
  • 32°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSE 144°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:56 am MDT
  • Sunset: 6:36 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 61°F
  • 36°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSSW 202°
  • Humidity: 52%
  • UV index: 2
  • Sunrise: 7:57 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 55°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphNNE 13°
  • Humidity: 57%
  • UV index: 2
  • Sunrise: 7:59 am MDT
  • Sunset: 6:33 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphSW 235°
  • Humidity: 43%
  • UV index: 2
  • Sunrise: 8:00 am MDT
  • Sunset: 6:31 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 63°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0.12"
  • Wind: 11mphWSW 243°
  • Humidity: 49%
  • UV index: 2
  • Sunrise: 8:02 am MDT
  • Sunset: 6:29 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 45°F
  • 27°F
AM Showers
AM Showers
  • Precip. probability: 45%
  • Precipitation: 0.08"
  • Wind: 16mphWNW 285°
  • Humidity: 80%
  • UV index: 2
  • Sunrise: 8:03 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 36°F
  • 23°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0.12"
  • Wind: 12mphWSW 253°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 8:05 am MDT
  • Sunset: 6:25 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 32°F
  • 23°F
Snow Showers
Snow Showers
  • Precip. probability: 40%
  • Precipitation: 0.28"
  • Wind: 11mphNNE 24°
  • Humidity: 84%
  • UV index: 1
  • Sunrise: 8:06 am MDT
  • Sunset: 6:24 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 30°F
  • 25°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphWNW 300°
  • Humidity: 83%
  • UV index: 2
  • Sunrise: 8:08 am MDT
  • Sunset: 6:22 pm MDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 34°F
  • 25°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 11mphW 273°
  • Humidity: 85%
  • UV index: 2
  • Sunrise: 8:09 am MDT
  • Sunset: 6:20 pm MDT
  • ▼
And a combination of primarily cloud-filled and occasionally dry and sunny, damp and snowy weather is anticipated.
Rainfall is forecasted for Thursday through Saturday.
With a probability of 40%, snowfall is predicted only for next Sunday. The precipitation will be moderate at 0.28".
Expect a substantial fluctuation in daytime highs in the next ten days. Forecast highs will fluctuate between 30.2°F and 66.2°F, while the nightly low temperatures will show also a considerable swing, as the lowest temperatures will be recorded between 23°F and 42.8°F.
The warmest day will be Wednesday, with a maximum of 66.2°F; the lowest daytime temperature of the period will be reached on next Monday, peaking at 30.2°F.
Updated: Oct 18, 2026 @ 12:16:50 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, expect bright skies and plenty of sunshine.

Today, the maximum temperature will be 55.4°F, while the minimum temperature will be 32°F.
Today, the highest temperature will be moderately higher than the average maximum temperature in October. The lowest temperature will be also moderately lower than the average low of 36.1°F.

On Sunday, in Heart Butte, sunrise will be at 7:56 am and sunset at 6:36 pm (MDT).

Today, the daylight will last for 10h and 41min.