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 4.3° 5.0°
Average change in low temperature day-to-day 5.2° 6.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 61%
Chance of precip day after a dry day 12% 20%
 
 

Weather forecast accuracy for Groton, Connecticut

Last Month
The Weather Channel   78.45%
Intellicast   78.45%
National Weather Service   71.26%
AccuWeather   70.40%
CustomWeather   70.11%
Weather Underground   69.54%
World Weather Online   66.67%
NWS Digital Forecast   64.94%
Persistence   56.32%
Last Year
Intellicast   71.89%
The Weather Channel   71.87%
AccuWeather   70.06%
National Weather Service   67.77%
CustomWeather   65.92%
NWS Digital Forecast   63.23%
Persistence   47.52%
 

ForecastAdvisor Fact

On average, Intellicast's high temperature forecasts for Groton were off by 2.60 degrees last month.