Weather forecast accuracy details for Sioux Falls, South Dakota

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 (December)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Weather Underground   80.00% 67.78% 84.44% 84.44% 79.17%
The Weather Channel   78.89% 65.56% 84.44% 84.44% 78.33%
Foreca/Vaisala   70.00% 71.11% 85.56% 85.56% 78.06%
AccuWeather   77.01% 65.52% 81.61% 81.61% 76.44%
NWS Digital Forecast   71.11% 57.78% 80.00% 80.00% 72.22%
Dark Sky   67.78% 51.11% 83.33% 83.33% 71.39%
Wetter   68.89% 43.33% 81.11% 81.11% 68.61%
AerisWeather   64.37% 52.27% 78.16% 78.16% 68.24%
Weather News   50.00% 55.56% 76.67% 76.67% 64.72%
World Weather Online   67.78% 51.11% 70.00% 70.00% 64.72%
Weatherbit   56.47% 42.53% 78.82% 78.82% 64.16%
OpenWeather   64.44% 34.44% 75.56% 75.56% 62.50%
Persistence   18.75% 32.35% 56.25% 56.25% 40.90%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   74.72% 68.52% 86.57% 86.57% 79.10%
Weather Underground   74.63% 69.35% 85.00% 85.00% 78.50%
Foreca/Vaisala   70.00% 64.91% 85.38% 85.46% 76.44%
AccuWeather   73.41% 66.36% 79.85% 81.46% 75.27%
AerisWeather   68.43% 56.40% 83.57% 83.57% 72.99%
Dark Sky   68.24% 54.26% 83.61% 83.61% 72.43%
NWS Digital Forecast   69.65% 60.97% 77.64% 77.64% 71.48%
Weather News   54.82% 54.44% 72.73% 72.73% 63.68%
Wetter   44.72% 48.15% 80.37% 80.37% 63.40%
Weatherbit   49.86% 44.17% 78.09% 78.09% 62.55%
OpenWeather   44.72% 30.93% 80.09% 80.09% 58.96%
World Weather Online   41.60% 46.61% 73.72% 73.72% 58.91%
Persistence   29.96% 27.74% 59.30% 59.30% 44.08%

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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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