5-day weather forecast for Allentown, Pennsylvania

Weather forecast accuracy details for Allentown, Pennsylvania

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.

Click on the headers to sort by that column.
Weather Forecast Accuracy Data Last Month
Provider High Temp Low Temp Icon Precip Text Precip Overall
Weather Underground   92.22% 80.00% 72.22% 72.22% 79.17%
The Weather Channel   92.22% 80.00% 71.11% 71.11% 78.61%
Dark Sky   83.33% 78.89% 67.78% 67.78% 74.44%
MeteoGroup   86.67% 64.44% 72.22% 73.33% 74.17%
Foreca   91.11% 71.11% 64.44% 64.44% 72.78%
AccuWeather   93.33% 68.89% 61.11% 61.11% 71.11%
NWS Digital Forecast   87.36% 71.26% 57.47% 57.47% 68.39%
Persistence   70.11% 54.76% 51.72% 51.72% 57.08%
World Weather Online   34.44% 43.33% 54.44% 54.44% 46.67%
Weather Forecast Accuracy Data Last Year
Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   77.51% 72.68% 81.51% 83.36% 78.76%
Weather Underground   77.31% 72.46% 81.51% 81.51% 78.20%
Foreca   71.99% 68.81% 80.39% 80.39% 75.40%
MeteoGroup   73.63% 67.22% 80.32% 80.41% 75.39%
AccuWeather   74.58% 66.11% 79.61% 80.91% 75.30%
Dark Sky   70.11% 66.67% 79.42% 79.42% 73.91%
NWS Digital Forecast   69.36% 64.84% 75.12% 75.12% 71.11%
World Weather Online   46.80% 39.09% 71.49% 71.49% 57.22%
Persistence   31.91% 31.30% 50.42% 50.42% 41.01%
 
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 white paper.

Please contact us with whatever custom needs you may have. We would love to help!