Weather forecast for tomorrowRiverside, MT

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 59°F
  • 23°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 10mphS 184°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:43 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
Tomorrow, in Riverside, mostly clear skies and sunshine will create ideal daytime conditions.
Temperature values will vary noticeably, extending from a refreshing 59°F to a subzero 23°F.
Tomorrow, the forecasted high will be higher and much closer to September's average high of 61.9°F than October's 44.2°F.
Sunrise will be at 7:43 am and sunset at 6:34 pm; tomorrow's daylight will last for 10h and 51min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 57°C.
Coldest period: 6 am - 9 am 27°C.

Chance of precipitation

Highest chance: 6 am 3%.

Hourly weather forecast

  • 12 am
  • 32°F
  • Feels like:
    32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSW 195°
  • Humidity: 79%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 28°F
  • Feels like:
    28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphS 170°
  • Humidity: 84%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 27°F
  • Feels like:
    27°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphSSE 163°
  • Humidity: 84%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 27°F
  • Feels like:
    27°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphSE 143°
  • Humidity: 87%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:43 am
  • 8 am
  • 25°F
  • Feels like:
    25°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphSSE 154°
  • Humidity: 87%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 34°F
  • Feels like:
    34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphENE 59°
  • Humidity: 75%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 46°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSW 219°
  • Humidity: 47%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 213°
  • Humidity: 32%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSW 216°
  • Humidity: 29%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 54°F
  • Feels like:
    52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSW 210°
  • Humidity: 34%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:34 pm
  • 8 pm
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphS 190°
  • Humidity: 52%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 36°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSE 164°
  • Humidity: 66%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of gloomy and sun-filled weather is expected.
The temperature will vary between a minimum of 24.8°F and a maximum of 57.2°F. The warmest part of the day will be from 3 pm to 5 pm.
Tomorrow, the temperature will be closer to September's norm than to October's average of 44.2°F. The expected low will be close to the average minimum in October, which is 26.1°F.
Updated: Oct 18, 2026 @ 02:50:22 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, mostly sunny and dry conditions will continue.

Tomorrow, the maximum temperature in Riverside will be 59°F, while the minimum temperature will be 23°F.
Tomorrow, the maximum temperature will be significantly higher than the average highest temperature of 44.2°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Riverside, sunrise will be at 7:43 am and sunset at 6:34 pm (MDT).

In Riverside, the length of the day tomorrow will be 10h and 51min.