5-day weather forecast for East Weymouth, Massachusetts

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
The Weather Channel	75.64%	84.62%	66.67%	66.67%	73.40%
Intellicast	70.51%	79.49%	67.95%	67.95%	71.47%
AccuWeather	70.51%	82.05%	67.95%	64.10%	71.15%
CustomWeather	69.23%	84.62%	61.54%	61.54%	69.23%
NWS Digital Forecast	67.95%	76.92%	62.82%	62.82%	67.63%
Weather Underground	70.51%	73.08%	64.10%	60.26%	66.99%
World Weather Online	62.82%	51.28%	76.92%	76.92%	66.99%
National Weather Service	70.51%	75.64%	57.69%	57.69%	65.38%
Persistence	50.00%	37.31%	63.24%	63.24%	53.45%

Weather Forecast Accuracy Data Last Year
Provider	High Temp	Low Temp	Icon Precip	Text Precip	Overall
The Weather Channel	58.32%	73.75%	82.09%	82.09%	74.06%
National Weather Service	57.50%	60.54%	81.15%	81.15%	70.08%
AccuWeather	54.53%	60.91%	81.37%	82.21%	69.75%
Intellicast	58.54%	53.32%	82.05%	82.05%	68.99%
CustomWeather	52.29%	60.45%	78.93%	78.93%	67.65%
NWS Digital Forecast	54.29%	62.53%	74.57%	74.47%	66.46%
Persistence	27.58%	32.66%	53.94%	53.94%	42.03%

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