Weather forecast accuracy details for Baltimore, Maryland

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   84.95% 76.34% 88.17% 88.17% 84.41%
Weather Underground   84.95% 74.19% 88.17% 88.17% 83.87%
AccuWeather   80.43% 69.89% 89.13% 89.13% 82.15%
AerisWeather   72.04% 62.37% 86.02% 86.02% 76.61%
Foreca/Vaisala   78.49% 63.44% 80.65% 80.65% 75.81%
Dark Sky   80.65% 48.39% 87.10% 87.10% 75.81%
NWS Digital Forecast   70.97% 64.52% 79.57% 79.57% 73.66%
World Weather Online   72.22% 50.00% 84.44% 84.44% 72.78%
Wetter   63.44% 65.59% 78.49% 78.49% 71.51%
OpenWeather   67.74% 34.41% 84.95% 84.95% 68.01%
Weather News   62.37% 53.76% 77.42% 77.42% 67.74%
Weatherbit   56.82% 32.22% 84.09% 84.09% 64.31%
Persistence   28.99% 24.64% 60.87% 60.87% 43.84%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   82.73% 75.90% 84.95% 84.95% 82.13%
Weather Underground   83.01% 76.64% 83.47% 83.47% 81.65%
AccuWeather   81.79% 77.13% 84.37% 81.79% 81.27%
Dark Sky   77.65% 71.01% 83.19% 83.19% 78.76%
Foreca/Vaisala   77.84% 71.28% 81.14% 83.10% 78.34%
AerisWeather   76.23% 69.64% 82.08% 82.08% 77.51%
NWS Digital Forecast   74.46% 69.43% 74.79% 74.79% 73.37%
Wetter   60.66% 60.48% 78.86% 78.95% 69.74%
Weatherbit   52.76% 52.24% 78.95% 78.95% 65.73%
Weather News   66.91% 57.62% 68.76% 68.76% 65.51%
World Weather Online   55.83% 53.89% 75.83% 75.83% 65.35%
OpenWeather   53.83% 47.37% 77.38% 77.38% 63.99%
Persistence   30.35% 30.34% 55.68% 55.68% 43.01%

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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