5-day weather forecast for Chatham, Massachusetts

Weather changeability for Chatham, Massachusetts

Temperature Last Month Last Year
Average change in high temperature day-to-day 7.4° 5.4°
Average change in low temperature day-to-day 7.5° 7.2°
Precipitation Last Month Last Year
Chance of dry day after a precip day 86% 64%
Chance of precip day after a dry day 24% 31%

Weather forecast accuracy for Chatham, Massachusetts

Last Month
MeteoGroup   82.67%
The Weather Channel   81.33%
Weather Underground   81.33%
Foreca   79.33%
Dark Sky (forecast.io)   70.67%
AccuWeather   70.33%
NWS Digital Forecast   66.27%
World Weather Online   66.00%
Persistence   44.35%
Last Year
MeteoGroup   77.09%
The Weather Channel   76.54%
Weather Underground   76.45%
Foreca   75.22%
AccuWeather   73.22%
NWS Digital Forecast   70.41%
Dark Sky (forecast.io)   68.18%
World Weather Online   64.58%
Persistence   44.41%

ForecastAdvisor Fact

77.3% of Weather Underground's high temperature forecasts for Chatham were within 3 degrees of actual temperatures last month.