5-day weather forecast for Greenville, Maine

Weather forecast accuracy details for Greenville, Maine

These are the one- to three-day out accuracy percentages for high temperature, low temperature, icon forecast precipitation (both rain and snow), and text forecast precipitation (both rain and snow). Temperature accuracy is the percentage of forecasts within three degrees. Precipitation accuracy is the percentage of correct forecasts. The forecasts are collected in the evening.

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Weather Forecast Accuracy Data Last Month
Provider High Temp Low Temp Icon Precip Text Precip Overall
Dark Sky (forecast.io)   69.89% 73.12% 87.10% 87.10% 79.30%
The Weather Channel   74.19% 80.65% 79.57% 79.57% 78.49%
Weather Underground   72.04% 77.42% 79.57% 79.57% 77.15%
Foreca   74.19% 72.04% 79.57% 79.57% 76.34%
AccuWeather   71.11% 72.22% 80.00% 81.11% 76.11%
National Weather Service   68.82% 70.97% 81.72% 81.72% 75.81%
CustomWeather   68.82% 74.19% 77.42% 77.42% 74.46%
WeatherBug   58.06% 61.96% 76.34% 76.34% 68.18%
Persistence   34.41% 32.26% 53.76% 53.76% 43.55%
Weather Forecast Accuracy Data Last Year
Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   71.55% 70.72% 79.37% 79.37% 75.25%
Foreca   69.65% 67.78% 78.96% 78.96% 73.84%
National Weather Service   62.51% 65.68% 80.06% 79.87% 72.03%
WeatherBug   61.28% 60.31% 81.13% 81.13% 70.96%
AccuWeather   63.26% 66.94% 76.24% 76.80% 70.81%
CustomWeather   64.92% 63.35% 75.23% 75.23% 69.68%
Weather Underground   42.82% 60.13% 80.02% 79.10% 65.52%
Persistence   26.11% 25.95% 51.11% 51.11% 38.57%
 
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The data here is calculated from forecasts and observations collected and analyzed by ForecastWatch. If you would like more information about the methods, scientific approach, and the quality controls employed to ensure the data and analyses are of the highest quality, please read this white paper.

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