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 7.6° 6.4°
Average change in low temperature day-to-day 10.3° 8.0°
Precipitation Last Month Last Year
Chance of dry day after a precip day 83% 72%
Chance of precip day after a dry day 19% 24%

Weather forecast accuracy for Sioux City, Iowa

Last Month
Foreca   77.08%
The Weather Channel   74.40%
Weather Underground   74.11%
AccuWeather   73.81%
Dark Sky (forecast.io)   70.54%
MeteoGroup   70.54%
NWS Digital Forecast   69.05%
World Weather Online   59.52%
Persistence   44.14%
Last Year
The Weather Channel   73.03%
Weather Underground   72.69%
Foreca   71.96%
MeteoGroup   71.27%
AccuWeather   70.35%
Dark Sky (forecast.io)   66.76%
NWS Digital Forecast   64.73%
World Weather Online   60.92%
Persistence   44.68%

ForecastAdvisor Fact

48.8% of NWS Digital Forecast's low temperature forecasts for Sioux City were within 3 degrees of actual temperatures last month.