Weather forecast for 10 daysRiver Sioux, IA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 68°F
- 41°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 18mphS 183°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:40 am CDT
- Sunset: 6:38 pm CDT
- details ▼
Tomorrow, on Sunday, October 18, skies are expected to be clear and full of sunshine.
A significant variation in temperature is forecasted, ranging from a high of a delightful 68°F to a low of a cold 41°F.
Tomorrow's forecasted high will be slightly warmer than the typical October high of 61°F.
Sunrise will be at 7:40 am and sunset at 6:38 pm; tomorrow's daylight will last for 10h and 58min.
A significant variation in temperature is forecasted, ranging from a high of a delightful 68°F to a low of a cold 41°F.
Tomorrow's forecasted high will be slightly warmer than the typical October high of 61°F.
Sunrise will be at 7:40 am and sunset at 6:38 pm; tomorrow's daylight will last for 10h and 58min.
10-day overview
Daily temperatures
Warmest day: Friday 79°C.
Coldest day: Sunday 25.10. 66°C.
Coldest day: Sunday 25.10. 66°C.
Chance of precipitation
Highest chance: Saturday - Sunday 24%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 39°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 13mphS 182°
- Humidity: 70%
- UV index: 0
- Sunrise: 7:39 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 68°F
- 41°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 18mphS 183°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:40 am CDT
- Sunset: 6:38 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 43°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 11mphSSE 164°
- Humidity: 61%
- UV index: 4
- Sunrise: 7:41 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 72°F
- 50°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 12mphSSE 162°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:42 am CDT
- Sunset: 6:35 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 46°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 10mphS 178°
- Humidity: 63%
- UV index: 4
- Sunrise: 7:43 am CDT
- Sunset: 6:33 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 55°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 9mphSSE 151°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:44 am CDT
- Sunset: 6:32 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 79°F
- 59°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 19mphSSE 159°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:46 am CDT
- Sunset: 6:30 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 75°F
- 54°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 16mphS 180°
- Humidity: 53%
- UV index: 3
- Sunrise: 7:47 am CDT
- Sunset: 6:29 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 66°F
- 50°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 10mphNNW 329°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:48 am CDT
- Sunset: 6:28 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 68°F
- 50°F
Partly Cloudy
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 11mphSSE 161°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:49 am CDT
- Sunset: 6:26 pm CDT
- details ▼
Weather patterns suggest that a combination of dull and mostly clear weather is predicted.
Rainfall is not anticipated in River Sioux in the upcoming days.
Temperature variation will be noticeable across the forecast period. Maximum temperatures are forecasted between 66.2°F and 78.8°F, while the lowest night temperatures will vary also significantly, as the minimum temperature is expected to range between 39.2°F and 59°F.
With the highest temperature of 78.8°F, Friday will be the warmest day; expect the coldest day on next Sunday with a high of 66.2°F.
Rainfall is not anticipated in River Sioux in the upcoming days.
Temperature variation will be noticeable across the forecast period. Maximum temperatures are forecasted between 66.2°F and 78.8°F, while the lowest night temperatures will vary also significantly, as the minimum temperature is expected to range between 39.2°F and 59°F.
With the highest temperature of 78.8°F, Friday will be the warmest day; expect the coldest day on next Sunday with a high of 66.2°F.
Updated: Oct 18, 2026 @ 03:57:06 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
Tomorrow, in River Sioux, a sun-drenched sky is anticipated.
Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 41°F.
The highest temperature tomorrow will be moderately 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 moderately higher than the average maximum temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in River Sioux, sunrise will be at 7:40 am and sunset at 6:38 pm (CDT).
Tomorrow, the daylight will last for 10h and 58min.
