Weather forecast accuracy details for San Antonio, Texas

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   87.78% 78.89% 81.11% 81.11% 82.22%
Weather Underground   87.78% 78.89% 81.11% 81.11% 82.22%
AerisWeather   88.89% 70.00% 81.11% 81.11% 80.28%
AccuWeather   86.67% 72.22% 81.11% 80.00% 80.00%
Foreca/Vaisala   82.22% 66.67% 83.33% 83.33% 78.89%
NWS Digital Forecast   88.89% 72.22% 75.56% 75.56% 78.06%
Wetter   71.11% 72.22% 82.22% 82.22% 76.94%
OpenWeather   83.33% 53.33% 73.33% 73.33% 70.83%
World Weather Online   44.44% 58.89% 70.00% 70.00% 60.83%
Persistence   72.06% 39.44% 60.29% 60.29% 58.02%
Weather News   84.44% 52.22% 80.00% 0.00% 54.17%

Weather Forecast Accuracy Data Last Year (2020)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   78.96% 77.28% 84.73% 84.73% 81.42%
Weather Underground   78.96% 77.28% 84.45% 84.45% 81.28%
AccuWeather   78.86% 78.31% 80.82% 79.61% 79.40%
AerisWeather   75.14% 70.58% 78.96% 78.96% 75.91%
NWS Digital Forecast   75.45% 71.58% 76.30% 76.30% 74.91%
Foreca/Vaisala   71.97% 72.25% 77.65% 77.65% 74.88%
Wetter   48.22% 73.88% 79.68% 79.68% 70.37%
OpenWeather   59.68% 46.18% 76.63% 76.63% 64.78%
World Weather Online   61.90% 54.15% 67.13% 67.13% 62.58%
Persistence   44.05% 37.85% 63.57% 63.57% 52.26%
Weather News   66.83% 53.72% 78.80% 0.00% 49.84%

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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