Weather forecast for 10 daysDillon, MT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 66°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSSW 203°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:42 pm MDT
  • ▼
On Saturday, in Dillon, clouds will come and go, but expect bright periods in between.
Dramatic temperature shifts from a high of an enjoyable 66.2°F to a low of a wintry 35.6°F are predicted.
The higher temperature of 66.2°F is more typical of September than October.
Sunrise was at 7:49 am and sunset will be at 6:42 pm; the daylight will last for 10h and 52min.

Sunday Oct 18, 2026

  • 64°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphSSW 206°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:50 am MDT
  • Sunset: 6:40 pm MDT
  • ▼
Tomorrow, on Sunday, some passing clouds may drift through, but the sun will shine at times.
A remarkable high of an enjoyable 64.4°F during the day and a stark low of a wintry 33.8°F at night are anticipated.
Weather conditions lean warmer, with the temperature tracking September's average high of 66°F.
Sunrise will be at 7:50 am and sunset at 6:40 pm; tomorrow's daylight will last for 10h and 49min.

10-day overview

Daily temperatures

Maximum temperature: 66°C.
Coldest period: Sunday - Monday 46°C.

Chance of precipitation

Highest chance: Friday 50%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 66°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSSW 203°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:42 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphSSW 206°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:50 am MDT
  • Sunset: 6:40 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphSSW 196°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:52 am MDT
  • Sunset: 6:38 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 63°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 6mphWSW 247°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 7:53 am MDT
  • Sunset: 6:36 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 63°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphSSW 206°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:54 am MDT
  • Sunset: 6:35 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 63°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0.08"
  • Wind: 7mphSSW 204°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:56 am MDT
  • Sunset: 6:33 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 52°F
  • 30°F
Showers
Showers
  • Precip. probability: 50%
  • Precipitation: 0.2"
  • Wind: 8mphW 260°
  • Humidity: 79%
  • UV index: 2
  • Sunrise: 7:57 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 48°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 7mphSSW 201°
  • Humidity: 74%
  • UV index: 3
  • Sunrise: 7:58 am MDT
  • Sunset: 6:30 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 46°F
  • 28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphSW 232°
  • Humidity: 72%
  • UV index: 3
  • Sunrise: 8:00 am MDT
  • Sunset: 6:28 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 46°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 7mphSW 218°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 8:01 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
Looking ahead, conditions suggest a period of primarily overcast and occasionally sun-filled and showery weather is expected.
Rain is forecasted for Thursday and Friday.
Noticeable swings in temperature are expected in the coming days. Forecast highs will fluctuate between 46.4°F and 66.2°F, while the lowest nightly temperature differences will be also quite pronounced, as the minimum temperature is expected to range between 28.4°F and 42.8°F.
The warmest days will be Saturday and Monday, with a maximum of 66.2°F; next Sunday and Monday, with the highest temperature of 46.4°F, will be the coldest days.
Updated: Oct 17, 2026 @ 13:50:58 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, moderate cloud cover will mix with sunshine throughout the day.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 35.6°F.
The highest temperature today will be notably higher than the average maximum of 49.3°F in October. Today, the lowest temperature will be a couple of degrees higher than the average low temperature.

On Saturday, in Dillon, sunrise was at 7:49 am and sunset will be at 6:42 pm (MDT).

In Dillon, Montana, today, there will be 10h and 52min of daylight.

Tomorrow, variable cloud cover will persist, but sunshine will break through.

Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 33.8°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 49.3°F in October. The lowest temperature will be in line with the average low of 31.1°F.

On Sunday, in Dillon, sunrise will be at 7:50 am and sunset at 6:40 pm (MDT).

Tomorrow, the daylight will last for 10h and 49min.