5-day weather forecast for Union, Iowa

Weather changeability for Marshalltown, Iowa

Temperature Last Month Last Year
Average change in high temperature day-to-day 4.0° 6.6°
Average change in low temperature day-to-day 5.2° 8.5°
Precipitation Last Month Last Year
Chance of dry day after a precip day 62% 61%
Chance of precip day after a dry day 44% 20%
 
 

Weather forecast accuracy for Marshalltown, Iowa

Last Month
Weather Underground   81.72%
The Weather Channel   81.45%
MeteoGroup   80.91%
Foreca   77.69%
AccuWeather   77.15%
Dark Sky (forecast.io)   74.44%
NWS Digital Forecast   73.66%
World Weather Online   60.00%
Persistence   38.71%
Last Year
Weather Underground   76.90%
The Weather Channel   76.82%
MeteoGroup   76.19%
Foreca   76.12%
AccuWeather   75.18%
NWS Digital Forecast   70.27%
Dark Sky (forecast.io)   68.01%
World Weather Online   63.99%
Persistence   45.91%
 

ForecastAdvisor Fact

On average, MeteoGroup's low temperature forecasts for Marshalltown were off by 2.01 degrees last month.