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 4.3° 5.4°
Average change in low temperature day-to-day 5.0° 7.2°
Precipitation Last Month Last Year
Chance of dry day after a precip day 47% 64%
Chance of precip day after a dry day 44% 31%

Weather forecast accuracy for Chatham, Massachusetts

Last Month
AccuWeather   83.95%
Foreca   83.49%
Weather Underground   82.44%
MeteoGroup   82.44%
The Weather Channel   81.85%
NWS Digital Forecast   80.06%
Dark Sky (forecast.io)   78.87%
World Weather Online   55.86%
Persistence   43.55%
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

13.3% of MeteoGroup's high temperature forecasts for Chatham were exactly right last year.