Weather forecast accuracy details for Sugar Grove, Illinois

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 (October)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   89.25% 73.12% 87.10% 87.10% 84.14%
AccuWeather   86.96% 61.29% 90.22% 92.39% 82.71%
Weather Underground   88.17% 72.04% 82.80% 82.80% 81.45%
Foreca/Vaisala   75.27% 59.14% 90.32% 90.32% 78.76%
AerisWeather   80.65% 48.39% 89.25% 89.25% 76.88%
NWS Digital Forecast   83.87% 48.39% 86.02% 86.02% 76.08%
OpenWeather   86.02% 32.26% 92.47% 92.47% 75.81%
World Weather Online   72.22% 45.56% 90.00% 90.00% 74.44%
Dark Sky   72.04% 31.18% 93.55% 93.55% 72.58%
Wetter   88.17% 26.88% 78.49% 78.49% 68.01%
Weather News   61.29% 33.33% 84.95% 84.95% 66.13%
Weatherbit   68.89% 13.19% 84.44% 84.44% 62.74%
Persistence   30.43% 28.99% 68.12% 68.12% 48.91%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   79.14% 68.72% 82.96% 82.96% 78.45%
Weather Underground   78.86% 69.09% 82.22% 82.22% 78.10%
AccuWeather   79.47% 65.44% 78.03% 77.68% 75.16%
Dark Sky   76.91% 56.80% 82.31% 82.31% 74.58%
Foreca/Vaisala   72.64% 63.68% 80.63% 78.24% 73.80%
AerisWeather   75.16% 59.10% 76.28% 76.28% 71.71%
NWS Digital Forecast   76.69% 59.02% 72.03% 72.03% 69.95%
Weather News   65.98% 46.09% 73.81% 73.81% 64.92%
Wetter   56.33% 42.46% 79.05% 79.05% 64.22%
Weatherbit   53.14% 42.21% 71.58% 71.58% 59.63%
OpenWeather   57.36% 37.52% 69.83% 69.83% 58.64%
World Weather Online   55.74% 43.70% 63.96% 63.96% 56.84%
Persistence   33.50% 24.08% 56.53% 56.53% 42.66%

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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 overview.

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