5-day weather forecast for Union, Iowa

Weather changeability for Marshalltown, Iowa

Unfortunately, there was not enough data for this station to provide meaningful weather changeability data.

Weather forecast accuracy for Marshalltown, Iowa

Last Month
Foreca   79.84%
The Weather Channel   79.57%
Weather Underground   79.57%
MeteoGroup   79.30%
AccuWeather   77.50%
Dark Sky (forecast.io)   72.58%
NWS Digital Forecast   69.89%
Persistence   51.39%
Last Year
Weather Underground   75.16%
The Weather Channel   74.91%
MeteoGroup   74.46%
Foreca   70.49%
WeatherBug   70.43%
AccuWeather   68.87%
NWS Digital Forecast   67.36%
CustomWeather   65.65%
Persistence   44.78%
 

ForecastAdvisor Fact

On average, The Weather Channel's low temperature forecasts for Marshalltown were off by 2.90 degrees last year.