5-day weather forecast for Sully, 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   74.17%
The Weather Channel   73.89%
Weather Underground   73.89%
MeteoGroup   73.89%
AccuWeather   73.06%
NWS Digital Forecast   68.06%
Dark Sky (forecast.io)   68.06%
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

58.4% of Foreca's high temperature forecasts for Marshalltown were within 3 degrees of actual temperatures last year.