Weather forecast accuracy details for Mesa, 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 (December)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Weather Underground   83.87% 91.40% 91.40% 91.40% 89.52%
Foreca/Vaisala   87.10% 88.17% 91.40% 91.40% 89.52%
The Weather Channel   82.80% 91.40% 91.40% 91.40% 89.25%
AccuWeather   92.47% 88.17% 87.10% 86.02% 88.44%
Dark Sky   79.57% 88.17% 89.25% 89.25% 86.56%
NWS Digital Forecast   92.47% 89.25% 80.65% 80.65% 85.75%
AerisWeather   88.17% 79.57% 87.10% 87.10% 85.48%
Weather News   84.95% 73.12% 88.17% 88.17% 83.60%
World Weather Online   53.76% 56.99% 88.17% 88.17% 71.77%
Weatherbit   81.72% 15.05% 86.02% 86.02% 67.20%
Wetter   79.57% 17.20% 84.95% 84.95% 66.67%
OpenWeather   79.57% 12.90% 83.87% 83.87% 65.05%
Persistence   59.72% 30.26% 76.39% 76.39% 60.69%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Weather Underground   92.58% 82.42% 91.85% 91.85% 89.67%
The Weather Channel   92.58% 81.78% 92.03% 92.03% 89.61%
AccuWeather   94.61% 84.12% 85.23% 88.58% 88.14%
Foreca/Vaisala   89.38% 80.13% 90.20% 90.20% 87.48%
AerisWeather   90.48% 75.92% 89.65% 89.65% 86.42%
Dark Sky   87.35% 75.44% 91.11% 91.11% 86.25%
NWS Digital Forecast   93.25% 83.46% 82.35% 82.35% 85.35%
Weather News   86.13% 68.69% 90.91% 90.91% 84.16%
Weatherbit   85.98% 20.62% 91.02% 91.02% 72.16%
Wetter   82.51% 19.14% 91.03% 91.03% 70.92%
World Weather Online   68.32% 47.89% 82.42% 82.42% 70.26%
OpenWeather   85.07% 30.86% 80.68% 80.68% 69.32%
Persistence   52.54% 41.87% 80.59% 80.59% 63.90%

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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 overview.

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