Point Forecast: 2 Miles S Washington-Dulles International Airport VA
 38.93N 77.45W (Elev. 299 ft)
Last Update: 1:30 pm EDT Jul 13, 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  

Date07/1307/14
Hour (EDT)222300010203040506070809101112131415161718192021
Temperature (°F)777776757474747373737577808284868687868583817977
Dewpoint (°F)767575747474747373737576777778777878777777777676
Heat Index (°F)7777767575778790959798100979692887977
Surface Wind (mph)333222222222223355553332
Wind DirSESSSSSSSSESESSSSSSSSSSSSWS
Gust
Sky Cover (%)626865676461696759638169705755596462596776898477
Precipitation Potential (%)434548432420161513111410101832394143385164835353
Relative Humidity (%)9794979710010010010010010010097918582757775757782889197
RainChcChcChcChcSChcSChcSChcSChc----------SChcChcChcChcChcChcChcLklyOcnlChcChc
ThunderChcChcChcChc------------------SChcChcChcChcChcChcChcLklyLklyChcChc

Date07/15
Hour (EDT)222300010203040506070809101112131415161718192021
Temperature (°F)767675757473737373747577808284858686868584828180
Dewpoint (°F)767575747473737373737475767777777777767676767676
Heat Index (°F)767675757577869094969797969493898786
Surface Wind (mph)222222222222223355555333
Wind DirSESESSSSWNWNWNWNWNWNNEEESESSSSSSSS
Gust
Sky Cover (%)787978777677798079797873686369758181818181814847
Precipitation Potential (%)535353532323232323233030303030307171717171712020
Relative Humidity (%)1009710097100100100100100979794888580777575727577828588
RainChcChcChcChcSChcSChcSChcSChcSChcSChcChcChcChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChc
ThunderChcSChcSChcSChcSChcSChcSChcSChcSChcSChc------SChcSChcSChcChcChcChcChcChcChcSChcSChc

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