5-day weather forecast for Johnston, Iowa

Weather changeability for Des Moines, Iowa

Temperature Last Month Last Year
Average change in high temperature day-to-day 3.6° 6.1°
Average change in low temperature day-to-day 4.7° 6.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 61%
Chance of precip day after a dry day 42% 26%
 
 

Weather forecast accuracy for Des Moines, Iowa

Last Month
The Weather Channel   77.15%
Weather Underground   76.08%
Foreca   75.27%
MeteoGroup   75.27%
AccuWeather   70.97%
NWS Digital Forecast   69.56%
Dark Sky (forecast.io)   68.01%
World Weather Online   61.02%
Persistence   50.27%
Last Year
AccuWeather   75.95%
The Weather Channel   75.95%
Weather Underground   75.88%
MeteoGroup   74.98%
Foreca   74.67%
Dark Sky (forecast.io)   70.89%
NWS Digital Forecast   70.25%
World Weather Online   63.71%
Persistence   45.20%
 

ForecastAdvisor Fact

3.1% of NWS Digital Forecast's high temperature forecasts for Des Moines were off by more than 10 degrees last year.