5-day weather forecast for Old Monroe, Missouri

Weather changeability for Grafton, Illinois

Temperature Last Month Last Year
Average change in high temperature day-to-day 11.3° 7.2°
Average change in low temperature day-to-day 9.6° 7.5°
Precipitation Last Month Last Year
Chance of dry day after a precip day 71% 63%
Chance of precip day after a dry day 24% 17%

Weather forecast accuracy for Grafton, Illinois

Last Month
MeteoGroup   71.92%
Foreca   69.87%
AccuWeather   69.50%
The Weather Channel   65.19%
Weather Underground   64.22%
Dark Sky (forecast.io)   63.46%
NWS Digital Forecast   61.15%
World Weather Online   51.01%
Persistence   35.01%
Last Year
Weather Underground   75.03%
The Weather Channel   74.98%
MeteoGroup   74.40%
Foreca   74.09%
AccuWeather   74.05%
NWS Digital Forecast   68.82%
Dark Sky (forecast.io)   68.45%
World Weather Online   61.08%
Persistence   48.50%

ForecastAdvisor Fact

36.4% of Persistence's high temperature forecasts for Grafton were off by more than 10 degrees last year.