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 4.5° 6.3°
Average change in low temperature day-to-day 6.6° 7.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 59%
Chance of precip day after a dry day 13% 24%

Weather forecast accuracy for Marshalltown, Iowa

Last Month
Weather Underground   86.21%
The Weather Channel   85.92%
AccuWeather   82.18%
NWS Digital Forecast   81.90%
MeteoGroup   81.32%
Foreca   78.74%
Dark Sky (forecast.io)   76.72%
World Weather Online   62.36%
Persistence   51.11%
Last Year
Weather Underground   75.34%
The Weather Channel   75.22%
Foreca   73.60%
AccuWeather   73.49%
MeteoGroup   73.44%
Dark Sky (forecast.io)   69.74%
NWS Digital Forecast   69.37%
World Weather Online   63.61%
Persistence   44.56%

ForecastAdvisor Fact

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