5-day weather forecast for Windsor, Illinois

Weather changeability for Lerna, Illinois

Temperature Last Month Last Year
Average change in high temperature day-to-day 8.5° 6.2°
Average change in low temperature day-to-day 10.7° 8.6°
Precipitation Last Month Last Year
Chance of dry day after a precip day 80% 58%
Chance of precip day after a dry day 26% 20%
 
 

Weather forecast accuracy for Lerna, Illinois

Last Month
MeteoGroup   77.88%
Weather Underground   75.96%
Foreca   71.23%
The Weather Channel   70.19%
National Weather Service   69.33%
WeatherBug   68.83%
CustomWeather   67.63%
AccuWeather   64.74%
Dark Sky (forecast.io)   62.50%
Persistence   41.44%
Last Year
MeteoGroup   77.07%
The Weather Channel   75.69%
National Weather Service   74.02%
Foreca   72.61%
WeatherBug   72.57%
Weather Underground   71.48%
AccuWeather   70.22%
CustomWeather   68.39%
Persistence   44.58%
 

ForecastAdvisor Fact

On average, Weather Underground's high temperature forecasts for Lerna were off by 2.78 degrees last month.