5-day weather forecast for Brandy Station, Virginia

Weather changeability for Herndon, Virginia

Temperature Last Month Last Year
Average change in high temperature day-to-day 3.6° 6.2°
Average change in low temperature day-to-day 4.2° 7.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 46%
Chance of precip day after a dry day 19% 28%
 
 

Weather forecast accuracy for Herndon, Virginia

Last Month
The Weather Channel   80.28%
Weather Underground   79.44%
MeteoGroup   77.22%
AccuWeather   75.56%
Foreca   75.56%
NWS Digital Forecast   68.10%
Dark Sky   68.06%
World Weather Online   59.17%
Persistence   51.08%
Last Year
The Weather Channel   79.78%
Weather Underground   79.53%
AccuWeather   78.80%
Foreca   77.48%
MeteoGroup   77.24%
Dark Sky   74.81%
NWS Digital Forecast   73.67%
World Weather Online   59.88%
Persistence   42.29%
 

ForecastAdvisor Fact

91.1% of AccuWeather's high temperature forecasts for Herndon were within 3 degrees of actual temperatures last month.