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 6.0° 6.6°
Average change in low temperature day-to-day 6.9° 8.5°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 61%
Chance of precip day after a dry day 22% 20%

Weather forecast accuracy for Marshalltown, Iowa

Last Month
The Weather Channel   76.44%
AccuWeather   75.86%
Weather Underground   75.86%
MeteoGroup   75.57%
Foreca   74.43%
Dark Sky (forecast.io)   74.43%
NWS Digital Forecast   68.90%
World Weather Online   61.78%
Persistence   41.96%
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

ForecastWatch.com is the largest provider of weather forecast accuracy statistics.