Weather forecast for tomorrowSun River, MT
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 61°F
- 36°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 10mphE 86°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:50 am MDT
- Sunset: 6:33 pm MDT
- details ▼
Tomorrow, on Sunday, October 18, intermittent cloud cover is expected, allowing for some sunshine.
The temperature variation is predicted to range from a maximum of an enjoyable 60.8°F to a minimum of an icy 35.6°F.
The top temperature for tomorrow will be relatively higher than the average high in October of 54.5°F.
Sunrise will be at 7:50 am and sunset at 6:33 pm; tomorrow's daylight will last for 10h and 43min.
The temperature variation is predicted to range from a maximum of an enjoyable 60.8°F to a minimum of an icy 35.6°F.
The top temperature for tomorrow will be relatively higher than the average high in October of 54.5°F.
Sunrise will be at 7:50 am and sunset at 6:33 pm; tomorrow's daylight will last for 10h and 43min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 59°C.
Coldest hour: 6 am 43°C.
Coldest hour: 6 am 43°C.
Chance of precipitation
Highest chance: 6 am - 9 am 5%.
Hourly weather forecast
- 12 am
- 52°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphWSW 248°
- Humidity: 48%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 48°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphW 264°
- Humidity: 57%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 45°F
- Feels like:41°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 5mphW 264°
- Humidity: 67%
- Pressure: 30.09"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 43°F
- Feels like:39°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphW 262°
- Humidity: 72%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:50 am
- 8 am
- 41°F
- Feels like:41°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphWSW 243°
- Humidity: 77%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 48°F
- Feels like:46°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphNNE 18°
- Humidity: 63%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 54°F
- Feels like:54°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphE 93°
- Humidity: 44%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 2 pm
- 57°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphESE 105°
- Humidity: 41%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphE 82°
- Humidity: 37%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 57°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphE 80°
- Humidity: 41%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:33 pm
- 8 pm
- 50°F
- Feels like:46°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNE 53°
- Humidity: 52%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:43°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphN 2°
- Humidity: 63%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of gloomy and dry and sunny weather is forecasted.
The temperature will vary between a minimum of 41°F and a maximum of 59°F. The warmest part of the day will be from 3 pm to 5 pm.
Tomorrow, expect temperatures moderately higher than what is usual for October. The lowest temperature tomorrow will be also close to October's average minimum.
The temperature will vary between a minimum of 41°F and a maximum of 59°F. The warmest part of the day will be from 3 pm to 5 pm.
Tomorrow, expect temperatures moderately higher than what is usual for October. The lowest temperature tomorrow will be also close to October's average minimum.
Updated: Oct 17, 2026 @ 23:20:45 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, in Sun River, mostly clear with scattered clouds is expected.
Tomorrow, the maximum temperature will be 60.8°F, while the minimum temperature will be 35.6°F.
The highest temperature tomorrow will be a few degrees higher than the average maximum temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
The highest temperature tomorrow will be a few degrees higher than the average maximum temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Sun River, sunrise will be at 7:50 am and sunset at 6:33 pm (MDT).
In Sun River, the length of the day tomorrow will be 10h and 43min.
