5-day weather forecast for Sioux City, Iowa

Weather changeability for Sioux City, Iowa

Temperature Last Month Last Year
Average change in high temperature day-to-day 9.5° 7.2°
Average change in low temperature day-to-day 10.2° 7.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 80% 61%
Chance of precip day after a dry day 17% 24%

Weather forecast accuracy for Sioux City, Iowa

Last Month
Weather Underground   73.28%
The Weather Channel   73.15%
AccuWeather   72.41%
MeteoGroup   70.98%
Foreca   70.69%
CustomWeather   69.25%
Dark Sky (forecast.io)   66.95%
National Weather Service   66.38%
WeatherBug   66.09%
Persistence   43.75%
Last Year
MeteoGroup   70.68%
WeatherBug   68.83%
The Weather Channel   68.67%
National Weather Service   68.37%
Foreca   67.63%
AccuWeather   67.03%
Weather Underground   66.40%
CustomWeather   64.13%
Persistence   43.63%

ForecastAdvisor Fact

On average, The Weather Channel's high temperature forecasts for Sioux City were off by 3.20 degrees last month.