Weather forecast for tomorrowRiverton, IA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 68°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 17mphS 184°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:37 am CDT
  • Sunset: 6:37 pm CDT
  • ▼
On Sunday, October 18, the weather remains calm, bright, and sunny.
Temperatures are expected to range from a maximum of a pleasant 68°F to a minimum of a chilly 42.8°F.
The expected maximum temperature will be relatively higher than October's typical high of 62.8°F.
Sunrise will be at 7:37 am and sunset at 6:37 pm; tomorrow's daylight will last for 11h and 1min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 6 am 5%.

Hourly weather forecast

  • 12 am
  • 46°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 10mphS 182°
  • Humidity: 71%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 45°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 10mphS 186°
  • Humidity: 77%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphS 186°
  • Humidity: 82%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphS 184°
  • Humidity: 86%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:37 am
  • 8 am
  • 43°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 10mphS 179°
  • Humidity: 83%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphS 187°
  • Humidity: 63%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphS 189°
  • Humidity: 46%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphS 188°
  • Humidity: 37%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphS 184°
  • Humidity: 35%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphS 174°
  • Humidity: 39%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:37 pm
  • 8 pm
  • 57°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphSSE 164°
  • Humidity: 55%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphS 169°
  • Humidity: 65%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, mostly cloudless and sunny weather is anticipated.
The temperature will be between a minimum of 41°F and a maximum of 68°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the temperature is expected to be moderately higher than October's normal maximum of 62.8°F. Tomorrow, the lowest temperature will be also similar to October's usual minimum.
Updated: Oct 17, 2026 @ 21:05:36 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, expect bright skies and plenty of sunshine.

Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 42.8°F.
The highest temperature tomorrow will be slightly warmer than the average maximum temperature in October. Tomorrow, the lowest temperature will be in line with the average low temperature.

On Sunday, in Riverton, sunrise will be at 7:37 am and sunset at 6:37 pm (CDT).

In Riverton, the length of the day tomorrow will be 11h and 1min.