Weather forecast for 10 daysCuster, MT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 75°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWSW 253°
  • Humidity: 25%
  • UV index: 3
  • Sunrise: 7:30 am MDT
  • Sunset: 6:20 pm MDT
  • ▼
Today, on Saturday, October 17, dry and sunny weather is expected throughout the day.
Dramatic temperature shifts from a high of a temperate 75.2°F to a low of an icy 37.4°F are anticipated.
The anticipated high is warmer and better reflects September's normal temperature profile than that of October.
Sunrise was at 7:30 am and sunset will be at 6:20 pm; the daylight will last for 10h and 50min.

Sunday Oct 18, 2026

  • 64°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphNE 34°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:31 am MDT
  • Sunset: 6:18 pm MDT
  • ▼
Tomorrow, on Sunday, October 18, scattered clouds may briefly filter the sunlight, but it will remain bright overall.
The daytime temperature will peak at an enjoyable 64.4°F, significantly contrasting with the night's low of an icy 35.6°F.
Tomorrow's top temperature will be moderately higher than October's standard maximum of 57.2°F.
Sunrise will be at 7:31 am and sunset at 6:18 pm; tomorrow's daylight will last for 10h and 47min.

10-day overview

Daily temperatures

Warmest day: today 75°C.
Coldest day: Monday 26.10. 50°C.

Chance of precipitation

Highest chance: Friday 61%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 75°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWSW 253°
  • Humidity: 25%
  • UV index: 3
  • Sunrise: 7:30 am MDT
  • Sunset: 6:20 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphNE 34°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:31 am MDT
  • Sunset: 6:18 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphS 174°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:33 am MDT
  • Sunset: 6:17 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphWNW 296°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:34 am MDT
  • Sunset: 6:15 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphSSE 153°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:35 am MDT
  • Sunset: 6:13 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 72°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphSW 228°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:37 am MDT
  • Sunset: 6:11 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 64°F
  • 41°F
PM Showers
PM Showers
  • Precip. probability: 61%
  • Precipitation: 0.24"
  • Wind: 11mphNW 304°
  • Humidity: 65%
  • UV index: 2
  • Sunrise: 7:38 am MDT
  • Sunset: 6:10 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 52°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 12mphNW 317°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:40 am MDT
  • Sunset: 6:08 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 52°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 10mphNNE 30°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:41 am MDT
  • Sunset: 6:06 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 50°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 9mphNNW 343°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:42 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
For the next ten days, a combination of gloomy, dry and sunny and showery weather is expected.
With a 61% probability, rainfall is predicted only for Friday. Predicted precipitation will be light at 0.24".
Temperature variation will be noticeable across the forecast period. Highs will range from 50°F to 75.2°F, while the low temperature range extends from 33.8°F to 44.6°F.
With a high of 75.2°F, today is the warmest day; the coldest day will be next Monday, with a maximum of 50°F.
Updated: Oct 17, 2026 @ 20:35:41 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Custer, blue skies and warm sunshine will define the conditions.

Today, the highest temperature in Custer will be 75.2°F, while the lowest temperature will be 37.4°F.
The maximum temperature today will be uncommonly higher than the average highest temperature of 57.2°F in October. The lowest temperature will be a couple of degrees lower than the average low of 41.4°F.

On Saturday, in Custer, sunrise was at 7:30 am and sunset will be at 6:20 pm (MDT).

In Custer, the length of the day today will be 10h and 50min.

Tomorrow, sunny moments will alternate with patchy cloud cover.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 35.6°F.
The maximum temperature will be moderately higher than the average highest temperature of 57.2°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 41.4°F.

On Sunday, in Custer, sunrise will be at 7:31 am and sunset at 6:18 pm (MDT).

In Custer, tomorrow, there will be 10h and 47min of daylight.