Weather forecast accuracy details for Salem, 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 (February)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   85.06% 81.61% 82.76% 87.36% 84.20%
The Weather Channel   78.16% 73.56% 88.51% 88.51% 82.18%
Foreca/Vaisala   74.71% 78.16% 83.91% 83.91% 80.17%
AccuWeather   80.00% 73.42% 78.75% 77.50% 77.42%
Weatherbit   66.67% 80.46% 80.95% 80.95% 77.26%
NWS Digital Forecast   70.93% 69.77% 80.23% 80.23% 75.29%
AerisWeather   71.26% 68.97% 79.31% 79.31% 74.71%
Open-Meteo   58.62% 52.87% 82.76% 82.76% 69.25%
OpenWeather   52.87% 54.02% 81.61% 81.61% 67.53%
World Weather Online   52.87% 55.17% 79.31% 79.31% 66.67%
Pirate Weather   55.17% 33.33% 85.06% 85.06% 64.66%
Wetter   60.92% 44.83% 68.97% 58.62% 58.33%
Persistence   45.00% 39.34% 66.67% 66.67% 54.42%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   82.60% 83.48% 93.20% 93.20% 88.12%
The Weather Channel   81.96% 82.60% 93.13% 93.13% 87.71%
AerisWeather   77.75% 80.13% 92.12% 92.12% 85.53%
AccuWeather   80.61% 81.29% 89.83% 89.92% 85.41%
Foreca/Vaisala   78.75% 79.40% 90.48% 90.48% 84.78%
NWS Digital Forecast   78.54% 79.85% 88.05% 88.05% 83.62%
Weatherbit   73.92% 71.01% 90.06% 90.06% 81.26%
OpenWeather   62.73% 45.42% 89.65% 89.65% 71.86%
Pirate Weather   62.34% 42.73% 90.06% 90.06% 71.29%
World Weather Online   61.97% 37.07% 88.03% 88.03% 68.77%
Wetter   58.79% 53.02% 83.06% 78.85% 68.43%
Persistence   36.88% 40.66% 73.50% 73.50% 56.13%

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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