Weather forecast for tomorrowRiverton, UT

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 68°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 172°
  • Humidity: 39%
  • UV index: 4
  • Sunrise: 7:42 am MDT
  • Sunset: 6:43 pm MDT
  • ▼
Tomorrow, on Sunday, October 18, clouds and sunshine will alternate throughout the day.
The temperature is expected to oscillate between a maximum of a delightful 68°F and a minimum of a chilly 48.2°F.
Tomorrow, the anticipated high of 68°F is expected to reflect September's average high of 74.3°F.
Sunrise will be at 7:42 am and sunset at 6:43 pm; tomorrow's daylight will last for 11h and 1min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest hour: 3 am 46°C.

Chance of precipitation

Highest chance: 12 am - 9 pm 0%.

Hourly weather forecast

  • 12 am
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphS 170°
  • Humidity: 47%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 48°F
  • Feels like:
    46°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphS 174°
  • Humidity: 51%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 46°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphS 177°
  • Humidity: 54%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 48°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 175°
  • Humidity: 53%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:42 am
  • 8 am
  • 48°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 173°
  • Humidity: 55%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 55°F
  • Feels like:
    54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSE 168°
  • Humidity: 44%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 63°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSSE 165°
  • Humidity: 37%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSE 165°
  • Humidity: 31%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSE 166°
  • Humidity: 29%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphS 182°
  • Humidity: 36%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:43 pm
  • 8 pm
  • 57°F
  • Feels like:
    57°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSW 234°
  • Humidity: 47%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphS 177°
  • Humidity: 53%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of overcast and dry and sunny weather is predicted.
The temperature will be between a minimum of 46.4°F and a maximum of 66.2°F. The warmest part of the day will be from 2 pm to 5 pm.
The forecasted maximum is more consistent with September's typical high of 74.3°F than the average for October. Tomorrow, the night will be also more close to September's average minimum of 50.5°F than October's usual value of 39.2°F.
Updated: Oct 17, 2026 @ 17:37:53 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, thin clouds will pass through at times, but overall, it will remain bright.

Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 48.2°F.
Tomorrow, the maximum temperature will be noticeably higher than the average highest temperature of 57.6°F in October. The lowest temperature tomorrow will be relatively higher than the average low temperature.

On Sunday, in Riverton, sunrise will be at 7:42 am and sunset at 6:43 pm (MDT).

Tomorrow, the daylight will last for 11h and 1min.