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 4.9° 7.8°
Average change in low temperature day-to-day 5.1° 8.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 82% 62%
Chance of precip day after a dry day 47% 25%

Weather forecast accuracy for Sioux City, Iowa

Last Month
Weather Underground   66.94%
The Weather Channel   66.39%
MeteoGroup   66.11%
Foreca   65.83%
AccuWeather   61.21%
Dark Sky (forecast.io)   59.17%
NWS Digital Forecast   58.33%
Persistence   43.06%
Last Year
Weather Underground   72.71%
The Weather Channel   71.52%
MeteoGroup   69.59%
AccuWeather   68.08%
WeatherBug   67.57%
Foreca   66.78%
CustomWeather   65.33%
NWS Digital Forecast   64.63%
Persistence   42.58%

ForecastAdvisor Fact

On average, AccuWeather's high temperature forecasts for Sioux City were off by 3.40 degrees last month.