5-day weather forecast for Groton, Connecticut

Weather changeability for Groton, Connecticut

Temperature Last Month Last Year
Average change in high temperature day-to-day 7.3° 5.2°
Average change in low temperature day-to-day 7.0° 6.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 60% 60%
Chance of precip day after a dry day 19% 21%

Weather forecast accuracy for Groton, Connecticut

Last Month
The Weather Channel   76.28%
Weather Underground   76.28%
MeteoGroup   74.68%
Foreca   72.44%
Dark Sky (forecast.io)   69.55%
AccuWeather   69.23%
World Weather Online   66.99%
NWS Digital Forecast   65.08%
Persistence   50.96%
Last Year
Weather Underground   78.22%
The Weather Channel   77.67%
Foreca   75.92%
AccuWeather   74.61%
MeteoGroup   72.49%
Dark Sky (forecast.io)   69.04%
World Weather Online   67.01%
NWS Digital Forecast   65.52%
Persistence   49.21%

ForecastAdvisor Fact

25.6% of Persistence's high temperature forecasts for Groton were within 3 degrees of actual temperatures last month.