Weather forecast for 10 daysPlains, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 63°F
- 37°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphENE 65°
- Humidity: 64%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:46 pm MDT
- details ▼
On Sunday, in Plains, skies will stay clear and sunny.
Temperatures will oscillate between an enjoyable 62.6°F at their highest and an icy 37.4°F at their lowest.
Forecasts show a high closer to September's climate pattern, around 67.3°F, rather than October's 51.4°F.
Sunrise will be at 8:03 am and sunset at 6:46 pm; tomorrow's daylight will last for 10h and 43min.
Temperatures will oscillate between an enjoyable 62.6°F at their highest and an icy 37.4°F at their lowest.
Forecasts show a high closer to September's climate pattern, around 67.3°F, rather than October's 51.4°F.
Sunrise will be at 8:03 am and sunset at 6:46 pm; tomorrow's daylight will last for 10h and 43min.
10-day overview
Daily temperatures
Warmest day: Wednesday 66°C.
Coldest period: Friday - Monday 48°C.
Coldest period: Friday - Monday 48°C.
Chance of precipitation
Highest chance: 37%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 36°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 7mphWSW 242°
- Humidity: 72%
- UV index: 0
- Sunrise: 8:01 am MDT
- Sunset: 6:48 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 63°F
- 37°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphENE 65°
- Humidity: 64%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:46 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 39°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphE 88°
- Humidity: 65%
- UV index: 3
- Sunrise: 8:04 am MDT
- Sunset: 6:44 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 64°F
- 39°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphE 91°
- Humidity: 65%
- UV index: 3
- Sunrise: 8:05 am MDT
- Sunset: 6:42 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 43°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 2mphESE 109°
- Humidity: 65%
- UV index: 3
- Sunrise: 8:07 am MDT
- Sunset: 6:40 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 45°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0.2"
- Wind: 2mphS 177°
- Humidity: 72%
- UV index: 2
- Sunrise: 8:08 am MDT
- Sunset: 6:39 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 48°F
- 34°F
AM Showers
- Precip. probability: 37%
- Precipitation: 0.04"
- Wind: 7mphWSW 250°
- Humidity: 85%
- UV index: 2
- Sunrise: 8:10 am MDT
- Sunset: 6:37 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 48°F
- 34°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0.04"
- Wind: 2mphS 173°
- Humidity: 71%
- UV index: 2
- Sunrise: 8:11 am MDT
- Sunset: 6:35 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 48°F
- 34°F
AM Showers
- Precip. probability: 37%
- Precipitation: 0.04"
- Wind: 4mphENE 57°
- Humidity: 76%
- UV index: 2
- Sunrise: 8:13 am MDT
- Sunset: 6:33 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 48°F
- 36°F
Mostly Sunny
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 3mphENE 64°
- Humidity: 77%
- UV index: 2
- Sunrise: 8:14 am MDT
- Sunset: 6:32 pm MDT
- details ▼
For the next ten days, a combination of gloomy, sun-filled and rain-filled weather is anticipated.
Rain is expected on Thursday, Friday and next Sunday.
Temperature differences will be noticeable in the upcoming period. The maximum temperature will vary between 48.2°F and 66.2°F, while the lowest temperature will be between 33.8°F and 44.6°F.
Wednesday will be the warmest day, with a maximum temperature of 66.2°F; Friday through next Monday, with the highest temperature of 48.2°F, will be the coldest days.
Rain is expected on Thursday, Friday and next Sunday.
Temperature differences will be noticeable in the upcoming period. The maximum temperature will vary between 48.2°F and 66.2°F, while the lowest temperature will be between 33.8°F and 44.6°F.
Wednesday will be the warmest day, with a maximum temperature of 66.2°F; Friday through next Monday, with the highest temperature of 48.2°F, will be the coldest days.
Updated: Oct 18, 2026 @ 01:41:18 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, skies will stay clear and sunny.
Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 37.4°F.
Tomorrow, the highest temperature will be noticeably higher than the average maximum of 51.4°F in October. Tomorrow, the lowest temperature will be a few degrees higher than the average low temperature.
Tomorrow, the highest temperature will be noticeably higher than the average maximum of 51.4°F in October. Tomorrow, the lowest temperature will be a few degrees higher than the average low temperature.
On Sunday, in Plains, sunrise will be at 8:03 am and sunset at 6:46 pm (MDT).
Tomorrow, the daylight will last for 10h and 43min.
