Weather forecast accuracy details for Bedford, 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 (September)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   84.44% 83.33% 81.11% 81.11% 82.50%
Weather Underground   83.33% 83.33% 70.00% 70.00% 76.67%
Foreca/Vaisala   80.00% 73.33% 71.11% 71.11% 73.89%
AerisWeather   81.11% 71.11% 70.00% 70.00% 73.06%
NWS Digital Forecast   80.00% 70.00% 67.78% 67.78% 71.39%
AccuWeather   77.78% 80.00% 63.33% 63.33% 71.11%
Wetter   80.00% 55.56% 66.67% 66.67% 67.22%
World Weather Online   62.22% 55.56% 74.44% 74.44% 66.67%
OpenWeather   76.67% 33.33% 77.78% 77.78% 66.39%
Weather News   76.67% 51.11% 50.00% 0.00% 44.44%
Persistence   34.78% 21.13% 49.28% 49.28% 38.62%

Weather Forecast Accuracy Data Last Year (2020)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   80.45% 63.97% 86.96% 86.96% 79.59%
Weather Underground   80.45% 63.97% 85.10% 85.10% 78.65%
AccuWeather   78.58% 61.64% 82.31% 81.94% 76.12%
Foreca/Vaisala   75.33% 58.94% 83.24% 83.24% 75.19%
AerisWeather   74.58% 56.42% 77.65% 77.75% 71.60%
NWS Digital Forecast   75.74% 57.47% 72.98% 72.98% 69.79%
Wetter   65.73% 32.30% 82.49% 82.49% 65.75%
OpenWeather   61.55% 39.01% 79.42% 79.42% 64.85%
World Weather Online   63.96% 43.98% 75.54% 75.54% 64.75%
Weather News   63.78% 49.61% 71.57% 0.00% 46.24%
Persistence   28.89% 22.02% 56.58% 56.58% 41.02%

If this data feeds your inner weather geek, you'll probably be interested in the amazing amount of weather data available from ForecastWatch. Likewise, if you're looking to assess your own forecasting accuracy or would like to make more informed decisions about a weather provider you're considering or already use, we can provide data to help you.

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 overview.

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