Weather forecast accuracy details for Louisville, Kentucky

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
Foreca/Vaisala   77.42% 79.57% 87.10% 87.10% 82.80%
Weather Underground   61.29% 72.04% 93.55% 93.55% 80.11%
AccuWeather   60.00% 75.56% 90.00% 90.00% 78.89%
The Weather Channel   58.06% 72.04% 91.40% 91.40% 78.23%
AerisWeather   58.89% 71.11% 85.56% 85.56% 75.28%
Dark Sky   46.24% 66.67% 84.95% 84.95% 70.70%
NWS Digital Forecast   61.29% 72.04% 73.12% 73.12% 69.89%
Wetter   48.39% 58.06% 82.80% 83.87% 68.28%
World Weather Online   48.39% 36.56% 79.57% 79.57% 61.02%
Weather News   53.76% 51.61% 67.74% 67.74% 60.22%
Weatherbit   33.33% 28.09% 87.36% 87.36% 59.03%
OpenWeather   37.63% 32.26% 78.49% 78.49% 56.72%
Persistence   16.67% 25.00% 53.03% 53.03% 36.93%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   79.85% 82.45% 85.56% 85.56% 83.35%
Weather Underground   80.22% 82.92% 84.17% 84.17% 82.87%
Foreca/Vaisala   78.03% 82.50% 85.38% 85.33% 82.81%
AccuWeather   80.56% 83.03% 81.63% 81.65% 81.72%
AerisWeather   76.26% 78.31% 82.36% 82.36% 79.82%
Dark Sky   74.19% 76.42% 82.41% 82.41% 78.85%
NWS Digital Forecast   76.69% 82.21% 74.86% 74.86% 77.15%
Wetter   65.65% 75.30% 82.41% 82.50% 76.46%
Weatherbit   56.73% 53.33% 79.05% 79.05% 67.04%
Weather News   65.21% 70.66% 65.03% 65.03% 66.48%
World Weather Online   52.65% 52.55% 76.76% 76.76% 64.68%
OpenWeather   49.86% 38.90% 77.22% 77.22% 60.80%
Persistence   33.66% 34.31% 53.95% 53.95% 43.97%

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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