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 6.0° 6.4°
Average change in low temperature day-to-day 6.4° 7.5°
Precipitation Last Month Last Year
Chance of dry day after a precip day 47% 62%
Chance of precip day after a dry day 43% 27%

Weather forecast accuracy for Herndon, Virginia

Last Month
AccuWeather   81.85%
The Weather Channel   79.78%
Dark Sky   75.98%
Weather Underground   75.71%
Foreca   74.52%
NWS Digital Forecast   72.78%
World Weather Online   69.24%
Persistence   40.80%
Last Year
The Weather Channel   79.92%
AccuWeather   76.73%
Weather Underground   76.72%
MeteoGroup   75.77%
Foreca   75.26%
Dark Sky   75.00%
NWS Digital Forecast   71.62%
World Weather Online   62.09%
Persistence   41.03%

ForecastAdvisor Fact

It rained or snowed 92% of the time in Herndon last month when AccuWeather's text forecasts called for precipitation, and 19% of the time when they did not.