Point Forecast: 2 Miles S Washington-Dulles International Airport VA
 38.93N 77.45W (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)070809101112131415161718192021222300010203040506
Temperature (°F)737678818385868886858483817877757575747374737372
Dewpoint (°F)737475757676757576767676757574747473737372727272
Heat Index (°F)7678879194959896949391877877757575
Surface Wind (mph)222233555553332222221121
Wind DirSESSSSSSSSESESSSNWNNWSEESNWWNWNWN
Gust
Sky Cover (%)635440404053606574787884948485848374727871718386
Precipitation Potential (%)1185112130404761666676905848261818172520181713
Relative Humidity (%)100949182807570667275778082919097979497100939797100
Rain--------SChcChcChcChcLklyLklyLklyOcnlOcnlLklyChcChcSChcSChcSChcChcSChcSChcSChc--
Thunder--------SChcChcChcChcLklyLklyLklyLklyLklyChcChcChcSChcSChcSChc----------

Date07/16
Hour (EDT)070809101112131415161718192021222300010203040506
Temperature (°F)737577798183848585858483828180787776757574747474
Dewpoint (°F)727374747575757575757574747575757575747474747474
Heat Index (°F)75777987909294949492908887857877767575
Surface Wind (mph)122222333555333222222222
Wind DirNNNENENEESESSSSSSSSSSSSSSSSS
Gust
Sky Cover (%)726962677275778080808080805854494549525662677373
Precipitation Potential (%)132828282828286969696969692323232323231111111111
Relative Humidity (%)9794908582777472727274747782859194979797100100100100
Rain--ChcChcChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc----------
Thunder--------SChcSChcSChcChcChcChcChcChcChcSChcSChcSChc----------------

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