Weather forecast accuracy details for Ontario, Oregon

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
The Weather Channel   72.04% 62.37% 90.32% 90.32% 78.76%
Weather Underground   72.04% 62.37% 83.87% 83.87% 75.54%
Foreca/Vaisala   62.37% 48.39% 87.10% 87.10% 71.24%
AerisWeather   62.37% 55.91% 77.42% 78.49% 68.55%
AccuWeather   64.52% 56.99% 72.04% 70.97% 66.13%
Dark Sky   48.39% 50.54% 82.80% 82.80% 66.13%
NWS Digital Forecast   59.14% 44.09% 74.19% 74.19% 62.90%
Wetter   36.56% 31.18% 78.49% 78.49% 56.18%
Weather News   33.33% 49.46% 68.82% 68.82% 55.11%
OpenWeather   33.33% 26.88% 79.57% 79.57% 54.84%
World Weather Online   41.94% 22.58% 75.27% 75.27% 53.76%
Weatherbit   44.09% 30.11% 67.74% 67.74% 52.42%
Persistence   40.58% 31.51% 50.72% 50.72% 43.38%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   83.93% 67.31% 93.88% 93.88% 84.75%
Weather Underground   84.02% 67.76% 91.96% 91.96% 83.93%
AccuWeather   82.69% 66.85% 87.33% 88.80% 81.42%
AerisWeather   79.54% 60.18% 90.41% 90.50% 80.16%
NWS Digital Forecast   80.44% 59.96% 86.44% 86.44% 78.32%
Foreca/Vaisala   74.06% 54.43% 91.32% 91.32% 77.79%
Dark Sky   66.91% 48.72% 91.22% 91.22% 74.52%
Weather News   57.97% 43.22% 85.90% 85.90% 68.25%
Wetter   43.47% 39.77% 89.11% 89.11% 65.36%
Weatherbit   56.99% 28.77% 86.67% 86.67% 64.77%
OpenWeather   47.12% 36.62% 86.21% 86.21% 64.04%
World Weather Online   46.48% 38.54% 80.27% 80.27% 61.39%
Persistence   40.46% 33.13% 75.72% 75.72% 56.26%

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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