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 8.9° 6.3°
Average change in low temperature day-to-day 10.4° 7.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 40% 59%
Chance of precip day after a dry day 14% 24%

Weather forecast accuracy for Marshalltown, Iowa

Last Month
The Weather Channel   69.25%
Weather Underground   69.25%
Foreca   68.90%
MeteoGroup   68.10%
AccuWeather   67.82%
NWS Digital Forecast   60.34%
World Weather Online   54.46%
Dark Sky (forecast.io)   53.74%
Persistence   47.80%
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

11.0% of Weather Underground's low temperature forecasts for Marshalltown were exactly right last year.