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
The Weather Channel   76.39%
Weather Underground   76.39%
AccuWeather   76.39%
Foreca   76.39%
MeteoGroup   75.00%
NWS Digital Forecast   75.00%
Dark Sky (forecast.io)   66.67%
Persistence   27.78%
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

11.4% of NWS Digital Forecast's high temperature forecasts for Marshalltown were exactly right last year.