Point Forecast: Ashburn VA
 39.05N 77.49W (Elev. 299 ft)
Last Update: 5:55 am EDT Jul 14, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
Vent Rate (x1000 mph-ft)
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date07/1407/15
Hour (EDT)060708091011121314151617181920212223000102030405
Temperature (°F)737376788083868687868584838178777575757473737373
Dewpoint (°F)737374757575767576757676757575747373737372727272
Heat Index (°F)7678859096959895949390877877757575
Surface Wind (mph)222223355555533222212112
Wind DirSESESSSSSSSSESESSNNESSEESNWWNWN
Gust
Sky Cover (%)676763434943536165727978879386869085626277686686
Precipitation Potential (%)1210641020304248576165808958432116161624181514
Relative Humidity (%)10010094918577727070707577778291909494949797979797
Rain----------SChcChcChcChcLklyLklyLklyOcnlOcnlLklyChcSChcSChcSChcSChcSChcSChcSChc--
Thunder----------SChcChcChcChcLklyLklyLklyLklyLklyChcChcSChcSChcSChcSChc--------

Date07/16
Hour (EDT)060708091011121314151617181920212223000102030405
Temperature (°F)727375777981838485858584838281807877767575747474
Dewpoint (°F)727273747475757575757575757575747475747474737373
Heat Index (°F)75777987909294949492908987847877767575
Surface Wind (mph)112222233355555332222222
Wind DirNNNNENENEESESSSESESESSSSSSSSSSS
Gust
Sky Cover (%)857268626466707377777777777750494847525762687581
Precipitation Potential (%)101027272727272765656565656522222222222210101010
Relative Humidity (%)1009794908582777472727274777982828894949797979797
Rain----ChcChcChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc--------
Thunder----------SChcSChcSChcChcChcChcChcChcChcSChcSChcSChc--------------

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