Weather forecast for 10 daysChester, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 61°F
- 36°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphE 88°
- Humidity: 42%
- UV index: 3
- Sunrise: 7:48 am MDT
- Sunset: 6:29 pm MDT
- details ▼
Today, in Chester, sunny conditions are expected to continue.
The temperature scale will run from a maximum of a comfortable 60.8°F to a minimum of an icy 35.6°F.
The high temperature will be a couple of degrees higher than the typical October level of 54°F.
Sunrise will be at 7:48 am and sunset at 6:29 pm; the daylight will last for 10h and 40min.
The temperature scale will run from a maximum of a comfortable 60.8°F to a minimum of an icy 35.6°F.
The high temperature will be a couple of degrees higher than the typical October level of 54°F.
Sunrise will be at 7:48 am and sunset at 6:29 pm; the daylight will last for 10h and 40min.
10-day overview
Daily temperatures
Warmest day: Thursday 66°C.
Coldest period: Sunday - Tuesday 39°C.
Coldest period: Sunday - Tuesday 39°C.
Chance of precipitation
Highest chance: Friday 47%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 61°F
- 36°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphE 88°
- Humidity: 42%
- UV index: 3
- Sunrise: 7:48 am MDT
- Sunset: 6:29 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 63°F
- 39°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 8mphSSE 158°
- Humidity: 57%
- UV index: 2
- Sunrise: 7:50 am MDT
- Sunset: 6:27 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 61°F
- 36°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphN 0°
- Humidity: 53%
- UV index: 2
- Sunrise: 7:51 am MDT
- Sunset: 6:25 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 63°F
- 41°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 10mphSSE 166°
- Humidity: 65%
- UV index: 2
- Sunrise: 7:53 am MDT
- Sunset: 6:23 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 66°F
- 45°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphSW 226°
- Humidity: 58%
- UV index: 2
- Sunrise: 7:54 am MDT
- Sunset: 6:21 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 48°F
- 32°F
AM Showers
- Precip. probability: 47%
- Precipitation: 0"
- Wind: 18mphWNW 303°
- Humidity: 75%
- UV index: 1
- Sunrise: 7:56 am MDT
- Sunset: 6:19 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 45°F
- 28°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0.12"
- Wind: 12mphW 281°
- Humidity: 66%
- UV index: 2
- Sunrise: 7:58 am MDT
- Sunset: 6:17 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 39°F
- 28°F
Mostly Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 12mphNNE 33°
- Humidity: 75%
- UV index: 2
- Sunrise: 7:59 am MDT
- Sunset: 6:16 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 39°F
- 25°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 9mphNNE 20°
- Humidity: 72%
- UV index: 2
- Sunrise: 8:01 am MDT
- Sunset: 6:14 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 39°F
- 25°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 11mphWNW 284°
- Humidity: 85%
- UV index: 2
- Sunrise: 8:02 am MDT
- Sunset: 6:12 pm MDT
- details ▼
Models point to a combination of primarily cloudy and occasionally dry and sunny and wet weather is predicted.
Rainfall is not forecasted in Chester in the upcoming period.
Expect a substantial fluctuation in daytime highs in the coming days. The maximum temperature will vary between 39.2°F and 66.2°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 24.8°F up to 44.6°F.
Expect the warmest day on Thursday, with temperatures peaking at 66.2°F; next Sunday through next Tuesday, with the highest temperature of 39.2°F, will be the coldest days in Chester.
Rainfall is not forecasted in Chester in the upcoming period.
Expect a substantial fluctuation in daytime highs in the coming days. The maximum temperature will vary between 39.2°F and 66.2°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 24.8°F up to 44.6°F.
Expect the warmest day on Thursday, with temperatures peaking at 66.2°F; next Sunday through next Tuesday, with the highest temperature of 39.2°F, will be the coldest days in Chester.
Updated: Oct 18, 2026 @ 07:09:07 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
On Sunday, sunny and dry conditions are anticipated.
Today, the highest temperature will be 60.8°F, while the lowest temperature will be 35.6°F.
The maximum temperature will be a few degrees higher than the average highest temperature of 54°F in October. The lowest temperature today will be in line with the average low temperature.
The maximum temperature will be a few degrees higher than the average highest temperature of 54°F in October. The lowest temperature today will be in line with the average low temperature.
On Sunday, in Chester, sunrise will be at 7:48 am and sunset at 6:29 pm (MDT).
In Chester, today, there will be 10h and 40min of daylight.
