5-day weather forecast for Clifton, Virginia

Weather changeability for Herndon, Virginia

Temperature Last Month Last Year
Average change in high temperature day-to-day 3.2° 6.5°
Average change in low temperature day-to-day 5.3° 8.1°
Precipitation Last Month Last Year
Chance of dry day after a precip day 62% 55%
Chance of precip day after a dry day 44% 29%
 
 

Weather forecast accuracy for Herndon, Virginia

Last Month
MeteoGroup   73.06%
The Weather Channel   71.67%
Dark Sky (forecast.io)   71.11%
Weather Underground   70.83%
AccuWeather   69.25%
NWS Digital Forecast   66.94%
Foreca   65.56%
Persistence   50.37%
Last Year
MeteoGroup   73.65%
Weather Underground   73.48%
The Weather Channel   73.30%
AccuWeather   71.69%
Foreca   71.26%
WeatherBug   70.41%
NWS Digital Forecast   70.03%
CustomWeather   68.27%
Persistence   41.15%
 

ForecastAdvisor Fact

12.7% of WeatherBug's high temperature forecasts for Herndon were exactly right last year.