Weather forecast accuracy details for Rock Valley, 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 (February)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Weatherbit   52.87% 81.61% 97.70% 97.70% 82.47%
Microsoft   60.47% 79.31% 90.70% 91.86% 80.58%
The Weather Channel   54.02% 78.16% 93.10% 93.10% 79.60%
NWS Digital Forecast   53.49% 79.07% 88.37% 88.37% 77.33%
Foreca/Vaisala   44.83% 74.71% 90.80% 90.80% 75.29%
World Weather Online   55.17% 56.32% 94.25% 94.25% 75.00%
AerisWeather   54.02% 72.41% 85.06% 85.06% 74.14%
Open-Meteo   55.17% 57.47% 90.80% 90.80% 73.56%
AccuWeather   45.78% 74.39% 86.75% 86.75% 73.42%
OpenWeather   56.32% 45.98% 94.25% 94.25% 72.70%
Pirate Weather   55.17% 26.44% 95.40% 95.40% 68.10%
Wetter   35.63% 48.28% 85.06% 83.91% 63.22%
Persistence   14.75% 20.63% 80.33% 80.33% 49.01%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   75.53% 68.58% 85.57% 85.57% 78.81%
Microsoft   75.26% 66.04% 85.70% 85.70% 78.17%
Foreca/Vaisala   71.14% 63.74% 83.11% 83.11% 75.27%
AerisWeather   69.13% 62.37% 82.83% 82.83% 74.29%
AccuWeather   69.19% 65.25% 81.61% 80.00% 74.01%
NWS Digital Forecast   67.90% 62.45% 75.46% 75.46% 70.32%
Weatherbit   62.60% 58.98% 73.77% 73.86% 67.30%
Wetter   48.31% 46.39% 81.83% 82.65% 64.79%
Pirate Weather   49.59% 33.06% 81.63% 81.63% 61.48%
OpenWeather   43.29% 37.90% 76.80% 76.80% 58.70%
World Weather Online   47.66% 41.17% 72.59% 72.59% 58.50%
Persistence   27.28% 24.91% 55.94% 55.94% 41.02%

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.

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