Weather forecast for 10 daysBig Timber, MT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 75°F
  • 43°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 24mphWSW 254°
  • Humidity: 23%
  • UV index: 3
  • Sunrise: 7:39 am MDT
  • Sunset: 6:30 pm MDT
  • ▼
Today, windy and partly cloudy conditions will define the day.
Temperature is anticipated to hit a high of a warm 75.2°F during the day, dipping to a low of a frosty 42.8°F at night.
The temperature of 75.2°F aligns more with what is typical in September than what is normal in October.
Sunrise was at 7:39 am and sunset will be at 6:30 pm; the daylight will last for 10h and 51min.

Sunday Oct 18, 2026

  • 63°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphSSE 149°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:40 am MDT
  • Sunset: 6:28 pm MDT
  • ▼
On Sunday, in Big Timber, a partly cloudy outlook will keep the sky interesting throughout the day.
Temperature fluctuations will be substantial, ranging from a peak of a breezy 62.6°F to a low of a cold 35.6°F.
The forecast high of 62.6°F aligns more closely with September's typical high of 66.7°F than with October's usual 51.1°F.
Sunrise will be at 7:40 am and sunset at 6:28 pm; tomorrow's daylight will last for 10h and 48min.

10-day overview

Daily temperatures

Warmest day: today 75°C.
Coldest day: Sunday 25.10. 50°C.

Chance of precipitation

Highest chance: Friday 60%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 75°F
  • 43°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 24mphWSW 254°
  • Humidity: 23%
  • UV index: 3
  • Sunrise: 7:39 am MDT
  • Sunset: 6:30 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 63°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphSSE 149°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:40 am MDT
  • Sunset: 6:28 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphSW 216°
  • Humidity: 44%
  • UV index: 3
  • Sunrise: 7:42 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 11mphW 277°
  • Humidity: 39%
  • UV index: 2
  • Sunrise: 7:43 am MDT
  • Sunset: 6:25 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 11mphSW 236°
  • Humidity: 50%
  • UV index: 3
  • Sunrise: 7:45 am MDT
  • Sunset: 6:23 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 70°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphWSW 253°
  • Humidity: 46%
  • UV index: 3
  • Sunrise: 7:46 am MDT
  • Sunset: 6:21 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 63°F
  • 37°F
Rain
Rain
  • Precip. probability: 60%
  • Precipitation: 0.47"
  • Wind: 17mphW 265°
  • Humidity: 57%
  • UV index: 2
  • Sunrise: 7:47 am MDT
  • Sunset: 6:20 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 52°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 12mphW 264°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:18 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 50°F
  • 34°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphW 273°
  • Humidity: 61%
  • UV index: 2
  • Sunrise: 7:50 am MDT
  • Sunset: 6:17 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 52°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 12mphW 260°
  • Humidity: 52%
  • UV index: 2
  • Sunrise: 7:52 am MDT
  • Sunset: 6:15 pm MDT
  • ▼
Over the next ten days, a mix of cloud-filled, clear and showery weather is expected.
With a 60% probability, rainfall is forecasted only for Friday. Forecasted precipitation will be moderate at 0.47".
Substantial differences in temperature are forecasted in the coming days. Forecast highs will fluctuate between 50°F and 75.2°F, while the variation in nighttime lows will be also notably wide, as temperatures overnight will fluctuate from 33.8°F up to 48.2°F.
Today is the warmest day, with a maximum temperature of 75.2°F; the coldest day will be next Sunday, with a maximum of 50°F.
Updated: Oct 17, 2026 @ 13:51:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, partly cloudy skies will be paired with frequent wind gusts.

Today, the maximum temperature will be 75.2°F, while the minimum temperature will be 42.8°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 51.1°F in October. The lowest temperature today will be a few degrees higher than the average low temperature.

On Saturday, in Big Timber, sunrise was at 7:39 am and sunset will be at 6:30 pm (MDT).

Today, the daylight will last for 10h and 51min.

Tomorrow, in Big Timber, expect a partly sunny afternoon with variable cloud cover.

Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 35.6°F.
Tomorrow, the maximum temperature will be uncommonly higher than the average highest temperature of 51.1°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Big Timber, sunrise will be at 7:40 am and sunset at 6:28 pm (MDT).

Tomorrow, the daylight will last for 10h and 48min.