5-day weather forecast for Mesa, Arizona

Weather forecast accuracy details for Phoenix, Arizona

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
Provider High Temp Low Temp Icon Precip Text Precip Overall
MeteoGroup   90.00% 87.78% 84.44% 84.44% 86.67%
AccuWeather   88.89% 83.33% 86.67% 85.56% 86.11%
The Weather Channel   85.56% 77.78% 86.67% 86.67% 84.17%
Weather Underground   86.67% 76.67% 86.67% 86.67% 84.17%
Foreca   81.61% 70.11% 86.21% 86.21% 81.03%
Dark Sky (forecast.io)   90.00% 48.89% 88.89% 88.89% 79.17%
NWS Digital Forecast   78.89% 78.89% 75.56% 75.56% 77.22%
Persistence   56.67% 56.67% 80.00% 80.00% 68.33%
Weather Forecast Accuracy Data Last Year
Provider High Temp Low Temp Icon Precip Text Precip Overall
Weather Underground   91.51% 72.95% 95.01% 95.01% 88.62%
The Weather Channel   89.76% 75.42% 93.39% 93.39% 87.99%
MeteoGroup   87.48% 81.40% 91.53% 91.53% 87.98%
Foreca   83.52% 77.53% 93.82% 93.82% 87.17%
WeatherBug   84.75% 61.31% 94.45% 94.45% 83.74%
NWS Digital Forecast   87.42% 74.37% 85.26% 85.26% 83.08%
CustomWeather   79.44% 73.90% 88.92% 88.92% 82.79%
Persistence   51.33% 53.13% 90.06% 90.06% 71.15%
 
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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 white paper.

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