Weather forecast for 10 daysHeart Butte, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 55°F
- 32°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphSE 144°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:56 am MDT
- Sunset: 6:36 pm MDT
- details ▼
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.
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.
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
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphSE 144°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:56 am MDT
- Sunset: 6:36 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 61°F
- 36°F
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
- details ▼
- Tuesday
- Oct 20, 2026
- 55°F
- 36°F
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
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 43°F
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
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 41°F
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
- details ▼
- Friday
- Oct 23, 2026
- 45°F
- 27°F
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
- details ▼
- Saturday
- Oct 24, 2026
- 36°F
- 23°F
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
- details ▼
- Sunday
- Oct 25, 2026
- 32°F
- 23°F
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
- details ▼
- Monday
- Oct 26, 2026
- 30°F
- 25°F
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
- details ▼
- Tuesday
- Oct 27, 2026
- 34°F
- 25°F
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
- details ▼
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.
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
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.
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.





