5-day weather forecast for Clifton, Virginia
Weather changeability for Herndon, Virginia
Unfortunately, there was not enough data for this station to provide meaningful weather changeability data.
Weather forecast accuracy for Herndon, Virginia
|The Weather Channel||67.63%|
|National Weather Service||66.99%|
|Dark Sky (forecast.io)||57.37%|
|The Weather Channel||73.30%|
|National Weather Service||71.45%|
It rained or snowed 79% of the time in Herndon last year when Weather Underground's text forecasts called for precipitation, and 17% of the time when they did not.