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 8.8° 6.6°
Average change in low temperature day-to-day 8.6° 8.5°
Precipitation Last Month Last Year
Chance of dry day after a precip day 58% 61%
Chance of precip day after a dry day 39% 20%
 
 

Weather forecast accuracy for Marshalltown, Iowa

Last Month
Weather Underground   75.86%
The Weather Channel   75.00%
Foreca   73.85%
AccuWeather   71.26%
Dark Sky (forecast.io)   69.83%
MeteoGroup   68.68%
NWS Digital Forecast   67.82%
World Weather Online   64.37%
Persistence   37.78%
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

66.7% of Foreca's low temperature forecasts for Marshalltown were within 3 degrees of actual temperatures last month.