Weather forecast for 10 daysBig Sandy, MT
Weather forecast for the weekend
Saturday Oct 17, 2026
- 75°F
- 37°F
Partly Cloudy / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 20mphSW 225°
- Humidity: 25%
- UV index: 2
- Sunrise: 7:43 am MDT
- Sunset: 6:28 pm MDT
- details ▼
Today, on Saturday, October 17, variable cloud cover will pair with strong breezes.
The temperature will peak at a moderately hot 75.2°F during the day, dropping to a low of an icy 37.4°F at night.
The day's peak of 75.2°F reflects September's seasonal pattern more than October's.
Sunrise was at 7:43 am and sunset will be at 6:28 pm; the daylight will last for 10h and 44min.
The temperature will peak at a moderately hot 75.2°F during the day, dropping to a low of an icy 37.4°F at night.
The day's peak of 75.2°F reflects September's seasonal pattern more than October's.
Sunrise was at 7:43 am and sunset will be at 6:28 pm; the daylight will last for 10h and 44min.
Sunday Oct 18, 2026
- 63°F
- 36°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 10mphESE 115°
- Humidity: 45%
- UV index: 3
- Sunrise: 7:44 am MDT
- Sunset: 6:26 pm MDT
- details ▼
On Sunday, October 18, skies will stay clear and sunny.
Significant temperature fluctuations from a high of a comfortable 62.6°F to a low of an icy 35.6°F are forecasted.
Tomorrow, the maximum temperature is anticipated to be relatively higher than October's climate norm of 55.6°F.
Sunrise will be at 7:44 am and sunset at 6:26 pm; tomorrow's daylight will last for 10h and 41min.
Significant temperature fluctuations from a high of a comfortable 62.6°F to a low of an icy 35.6°F are forecasted.
Tomorrow, the maximum temperature is anticipated to be relatively higher than October's climate norm of 55.6°F.
Sunrise will be at 7:44 am and sunset at 6:26 pm; tomorrow's daylight will last for 10h and 41min.
10-day overview
Daily temperatures
Warmest day: today 75°C.
Coldest day: Monday 26.10. 46°C.
Coldest day: Monday 26.10. 46°C.
Chance of precipitation
Highest chance: Friday 45%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- 75°F
- 37°F
Partly Cloudy / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 20mphSW 225°
- Humidity: 25%
- UV index: 2
- Sunrise: 7:43 am MDT
- Sunset: 6:28 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 63°F
- 36°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 10mphESE 115°
- Humidity: 45%
- UV index: 3
- Sunrise: 7:44 am MDT
- Sunset: 6:26 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 36°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphSSE 158°
- Humidity: 53%
- UV index: 3
- Sunrise: 7:46 am MDT
- Sunset: 6:24 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 61°F
- 36°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 10mphNNW 327°
- Humidity: 61%
- UV index: 2
- Sunrise: 7:47 am MDT
- Sunset: 6:22 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 41°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 11mphSSE 161°
- Humidity: 56%
- UV index: 2
- Sunrise: 7:49 am MDT
- Sunset: 6:20 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 68°F
- 45°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphSSW 198°
- Humidity: 57%
- UV index: 2
- Sunrise: 7:50 am MDT
- Sunset: 6:18 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 57°F
- 34°F
Showers
- Precip. probability: 45%
- Precipitation: 0.16"
- Wind: 16mphW 265°
- Humidity: 68%
- UV index: 1
- Sunrise: 7:52 am MDT
- Sunset: 6:16 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 48°F
- 30°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 13mphW 269°
- Humidity: 60%
- UV index: 2
- Sunrise: 7:54 am MDT
- Sunset: 6:15 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 48°F
- 28°F
Mostly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 11mphNNE 20°
- Humidity: 66%
- UV index: 2
- Sunrise: 7:55 am MDT
- Sunset: 6:13 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 46°F
- 30°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 9mphWSW 243°
- Humidity: 70%
- UV index: 2
- Sunrise: 7:57 am MDT
- Sunset: 6:11 pm MDT
- details ▼
Models point to a combination of gloomy, sun-filled and damp weather is anticipated.
With a 45% probability, rainfall is predicted only for Friday. The precipitation will be light at 0.16".
Temperature fluctuation will be noticeable in the next ten days. Highs will range from 46.4°F to 75.2°F, while the nightly low temperatures will show also a considerable swing, as nighttime lows are forecast to fall between 28.4°F and 44.6°F.
The warmest day is today, with a maximum temperature of 75.2°F; expect the coldest day on next Monday with a high of 46.4°F.
With a 45% probability, rainfall is predicted only for Friday. The precipitation will be light at 0.16".
Temperature fluctuation will be noticeable in the next ten days. Highs will range from 46.4°F to 75.2°F, while the nightly low temperatures will show also a considerable swing, as nighttime lows are forecast to fall between 28.4°F and 44.6°F.
The warmest day is today, with a maximum temperature of 75.2°F; expect the coldest day on next Monday with a high of 46.4°F.
Updated: Oct 17, 2026 @ 15:23:53 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, strong breezes will keep things cool under a partly cloudy sky.
Today, the highest temperature 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 55.6°F in October. Today, the lowest temperature will be in line with the average low temperature.
The maximum temperature today will be uncommonly higher than the average highest temperature of 55.6°F in October. Today, the lowest temperature will be in line with the average low temperature.
On Saturday, in Big Sandy, sunrise was at 7:43 am and sunset will be at 6:28 pm (MDT).
In Big Sandy, today, there will be 10h and 44min of daylight.
On Sunday, in Big Sandy, a sun-drenched sky is anticipated.
Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 35.6°F.
The highest temperature will be relatively higher than the average maximum of 55.6°F in October. Tomorrow, the lowest temperature will be also slightly cooler than the average low temperature.
The highest temperature will be relatively higher than the average maximum of 55.6°F in October. Tomorrow, the lowest temperature will be also slightly cooler than the average low temperature.
On Sunday, in Big Sandy, sunrise will be at 7:44 am and sunset at 6:26 pm (MDT).
In Big Sandy, the length of the day tomorrow will be 10h and 41min.





