Weather forecast accuracy details for Lamoni, Iowa

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 (October)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   87.10% 78.49% 93.55% 93.55% 88.17%
Weather Underground   87.10% 80.65% 90.32% 90.32% 87.10%
Dark Sky   90.32% 75.27% 89.25% 89.25% 86.02%
Foreca/Vaisala   84.95% 78.49% 89.25% 89.25% 85.48%
AccuWeather   85.87% 76.34% 88.04% 90.22% 85.12%
AerisWeather   83.87% 68.82% 93.55% 93.55% 84.95%
NWS Digital Forecast   84.95% 68.82% 84.95% 84.95% 80.91%
Wetter   70.97% 64.52% 90.32% 90.32% 79.03%
Weather News   72.04% 62.37% 89.25% 89.25% 78.23%
World Weather Online   60.22% 48.39% 91.40% 91.40% 72.85%
OpenWeather   73.12% 29.03% 92.47% 92.47% 71.77%
Weatherbit   67.39% 31.52% 91.30% 91.30% 70.38%
Persistence   34.78% 18.84% 71.01% 71.01% 48.91%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   76.59% 79.78% 86.50% 86.50% 82.34%
Weather Underground   76.78% 79.87% 84.92% 84.92% 81.62%
Foreca/Vaisala   72.66% 76.12% 86.47% 86.69% 80.48%
AccuWeather   76.33% 79.67% 81.25% 82.39% 79.91%
AerisWeather   70.99% 74.93% 85.25% 85.25% 79.10%
Dark Sky   70.04% 74.44% 85.38% 85.38% 78.81%
NWS Digital Forecast   71.56% 77.16% 75.71% 75.71% 75.03%
Wetter   54.87% 62.36% 80.73% 80.73% 69.67%
Weatherbit   56.21% 57.03% 80.38% 80.38% 68.50%
Weather News   59.76% 57.12% 72.67% 72.67% 65.55%
World Weather Online   50.89% 58.97% 73.67% 73.67% 64.30%
OpenWeather   53.56% 40.64% 77.37% 77.37% 62.24%
Persistence   31.83% 25.98% 63.17% 63.17% 46.04%

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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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