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 8.0° 6.3°
Average change in low temperature day-to-day 12.1° 8.5°
Precipitation Last Month Last Year
Chance of dry day after a precip day 100% 61%
Chance of precip day after a dry day 12% 21%
 
 

Weather forecast accuracy for Marshalltown, Iowa

Last Month
MeteoGroup   79.89%
The Weather Channel   75.93%
Weather Underground   75.00%
Foreca   74.71%
AccuWeather   70.98%
CustomWeather   66.95%
WeatherBug   65.52%
Dark Sky (forecast.io)   64.94%
National Weather Service   62.93%
Persistence   49.40%
Last Year
MeteoGroup   75.51%
The Weather Channel   74.73%
WeatherBug   73.32%
National Weather Service   73.12%
AccuWeather   70.42%
Foreca   70.30%
Weather Underground   68.48%
CustomWeather   68.35%
Persistence   44.94%
 

ForecastAdvisor Fact

10.3% of AccuWeather's low temperature forecasts for Marshalltown were exactly right last month.