Weather forecast accuracy details for Quincy, Illinois

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 (January)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   74.19% 62.37% 91.40% 91.40% 79.84%
Foreca/Vaisala   74.19% 59.14% 91.40% 91.40% 79.03%
AerisWeather   67.74% 60.22% 91.40% 91.40% 77.69%
Microsoft   60.44% 62.50% 89.01% 90.11% 75.52%
AccuWeather   66.67% 52.69% 90.32% 89.25% 74.73%
NWS Digital Forecast   63.44% 51.61% 90.32% 90.32% 73.92%
Open-Meteo   60.22% 47.31% 89.25% 89.25% 71.51%
Weatherbit   64.52% 49.46% 84.95% 84.95% 70.97%
OpenWeather   56.99% 36.56% 86.02% 86.02% 66.40%
Wetter.com   53.76% 36.56% 84.95% 84.95% 65.05%
Pirate Weather   54.84% 19.35% 90.32% 90.32% 63.71%
World Weather Online   43.01% 43.01% 82.80% 82.80% 62.90%
Persistence   22.41% 5.36% 67.24% 67.24% 40.56%

Weather Forecast Accuracy Data Last Year (2024)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   80.40% 75.09% 88.29% 88.29% 83.02%
Microsoft   79.66% 77.61% 86.80% 87.77% 82.96%
Foreca/Vaisala   75.76% 71.21% 87.72% 87.72% 80.60%
Weatherbit   76.84% 71.90% 85.22% 85.22% 79.79%
AerisWeather   74.05% 69.60% 86.97% 86.97% 79.40%
AccuWeather   76.75% 74.52% 83.14% 82.18% 79.15%
NWS Digital Forecast   75.91% 70.40% 76.60% 76.60% 74.88%
Pirate Weather   74.07% 36.37% 86.55% 86.55% 70.89%
Open-Meteo   59.94% 51.89% 80.64% 80.64% 68.28%
Wetter.com   56.16% 51.04% 80.17% 79.70% 66.77%
World Weather Online   55.18% 50.14% 75.28% 75.28% 63.97%
OpenWeather   54.36% 40.53% 78.85% 78.85% 63.15%
Persistence   33.63% 24.75% 63.52% 63.52% 46.36%

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.

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