Weather forecast for 10 daysRiverton, UT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 72°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphS 179°
  • Humidity: 28%
  • UV index: 4
  • Sunrise: 7:41 am MDT
  • Sunset: 6:44 pm MDT
  • ▼
On Saturday, October 17, the outlook remains bright and sunny.
Temperature values will vary noticeably, extending from an agreeable 71.6°F to a frosty 44.6°F.
Today, expect a warmer trend, with a high of 71.6°F more common in September.
Sunrise was at 7:41 am and sunset will be at 6:44 pm; the daylight will last for 11h and 4min.

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.

10-day overview

Daily temperatures

Warmest day: today 72°C.
Coldest day: Friday 54°C.

Chance of precipitation

Highest chance: Friday 73%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 72°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphS 179°
  • Humidity: 28%
  • UV index: 4
  • Sunrise: 7:41 am MDT
  • Sunset: 6:44 pm MDT
  • ▼
  • 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
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphS 172°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:43 am MDT
  • Sunset: 6:41 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphS 179°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:44 am MDT
  • Sunset: 6:40 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 9mphS 175°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:45 am MDT
  • Sunset: 6:39 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 46°F
PM Showers
PM Showers
  • Precip. probability: 70%
  • Precipitation: 0.43"
  • Wind: 11mphS 171°
  • Humidity: 66%
  • UV index: 4
  • Sunrise: 7:46 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 54°F
  • 41°F
Light Rain
Light Rain
  • Precip. probability: 73%
  • Precipitation: 0.35"
  • Wind: 10mphSSW 208°
  • Humidity: 79%
  • UV index: 2
  • Sunrise: 7:47 am MDT
  • Sunset: 6:36 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 57°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 9mphS 187°
  • Humidity: 66%
  • UV index: 4
  • Sunrise: 7:48 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 11mphS 184°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:50 am MDT
  • Sunset: 6:33 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 59°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphS 190°
  • Humidity: 65%
  • UV index: 4
  • Sunrise: 7:51 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
Looking ahead, conditions suggest a period of mostly clear, dull and rain-filled weather is forecasted.
Rain is expected on Thursday and Friday.
The temperature will vary considerably in the upcoming days. Forecast highs will fluctuate between 53.6°F and 71.6°F, while the lowest nightly temperature differences will be also quite pronounced, as the lowest temperatures will be recorded between 41°F and 53.6°F.
Today is the warmest day, with a maximum temperature of 71.6°F; expect the coldest day on Friday with a high of 53.6°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

Today, sunshine will likely continue with scattered clouds at most.

Today, the maximum temperature in Riverton will be 71.6°F, while the minimum temperature will be 44.6°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 57.6°F in October. The lowest temperature today will be a couple of degrees higher than the average low temperature.

On Saturday, in Riverton, sunrise was at 7:41 am and sunset will be at 6:44 pm (MDT).

In Riverton, the length of the day today will be 11h and 4min.

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.