5-day weather forecast for Arlington, 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
Weather Underground   93.33% 78.89% 100.00% 100.00% 93.06%
The Weather Channel   90.12% 80.25% 100.00% 100.00% 92.59%
MeteoGroup   87.78% 80.00% 100.00% 100.00% 91.94%
Foreca   83.33% 81.11% 98.89% 98.89% 90.56%
National Weather Service   83.33% 80.00% 94.44% 94.44% 88.06%
CustomWeather   65.56% 72.22% 98.89% 98.89% 83.89%
Persistence   51.11% 52.22% 100.00% 100.00% 75.83%
WeatherBug   70.00% 32.22% 96.67% 96.67% 73.89%
Dark Sky (forecast.io)   20.00% 55.56% 100.00% 100.00% 68.89%
Weather Forecast Accuracy Data Last Year
Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   87.28% 80.22% 93.96% 93.96% 88.86%
MeteoGroup   86.35% 80.13% 93.59% 93.50% 88.39%
WeatherBug   82.23% 76.98% 93.41% 93.41% 86.51%
Weather Underground   77.53% 72.89% 93.50% 87.84% 82.94%
Foreca   82.54% 67.32% 90.20% 90.20% 82.56%
CustomWeather   73.63% 73.26% 88.95% 88.95% 81.20%
National Weather Service   84.97% 53.97% 86.55% 86.46% 77.99%
Persistence   44.82% 45.47% 89.36% 89.36% 67.25%
 
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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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