Weather forecast accuracy details for Saint Louis, Missouri

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 (February)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Foreca/Vaisala   75.31% 61.73% 87.65% 87.65% 78.09%
Microsoft   75.64% 58.44% 84.62% 83.33% 75.51%
The Weather Channel   66.67% 56.79% 87.65% 87.65% 74.69%
Weatherbit   66.67% 54.32% 88.89% 87.65% 74.38%
AccuWeather   58.44% 63.64% 83.12% 79.22% 71.10%
Open-Meteo   56.79% 28.40% 83.95% 83.95% 63.27%
AerisWeather   46.91% 58.02% 72.84% 72.84% 62.65%
Pirate Weather   52.56% 16.67% 87.18% 87.18% 60.90%
Wetter   35.80% 32.10% 83.95% 90.12% 60.49%
NWS Digital Forecast   52.50% 55.00% 66.25% 66.25% 60.00%
OpenWeather   37.04% 32.10% 82.72% 82.72% 58.64%
World Weather Online   40.74% 35.80% 74.07% 74.07% 56.17%
Persistence   18.18% 25.00% 85.45% 85.45% 53.52%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   78.48% 71.98% 85.81% 85.81% 80.52%
Microsoft   78.27% 73.72% 84.16% 84.16% 80.08%
Foreca/Vaisala   75.37% 67.58% 84.52% 84.52% 78.00%
AccuWeather   75.48% 70.09% 81.37% 82.03% 77.24%
AerisWeather   72.53% 66.48% 83.52% 83.33% 76.47%
Weatherbit   71.82% 62.73% 80.81% 80.81% 74.04%
NWS Digital Forecast   72.56% 65.30% 77.58% 77.58% 73.26%
Pirate Weather   59.32% 34.80% 84.85% 84.85% 65.96%
World Weather Online   50.19% 51.05% 77.78% 77.78% 64.20%
OpenWeather   49.82% 41.21% 82.14% 82.14% 63.83%
Wetter   54.85% 43.41% 78.11% 75.18% 62.89%
Persistence   28.40% 27.15% 60.99% 60.99% 44.38%

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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