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)202122230001020304050607080910111213141516171819
Temperature (°F)828077777675747474737373757780828486868786858381
Dewpoint (°F)767676757574747474737373757677777877787877777777
Heat Index (°F)8986777776757577879095979810097969288
Surface Wind (mph)653332222222222233555533
Wind DirSSSESSSSSSSSESESSSSSSSSSSSS
Gust
Sky Cover (%)606162686567646169675963816970575559646259677689
Precipitation Potential (%)404243454843242016151311141010183239414338516483
Relative Humidity (%)8288979497971001001001001001001009791858275777575778288
RainChcChcChcChcChcChcSChcSChcSChcSChc----------SChcChcChcChcChcChcChcLklyOcnl
ThunderChcChcChcChcChcChc------------------SChcChcChcChcChcChcChcLklyLkly

Date07/15
Hour (EDT)202122230001020304050607080910111213141516171819
Temperature (°F)797776767575747373737374757780828485868686858482
Dewpoint (°F)767676757574747373737373747576777777777776767676
Heat Index (°F)797776767575757786909496979796949389
Surface Wind (mph)322222222222222233555553
Wind DirWSSESESSSSWNWNWNWNWNWNNEEESESSSSSS
Gust
Sky Cover (%)847778797877767779807979787368636975818181818181
Precipitation Potential (%)535353535353232323232323303030303030717171717171
Relative Humidity (%)9197100971009710010010010010097979488858077757572757782
RainChcChcChcChcChcChcSChcSChcSChcSChcSChcSChcChcChcChcChcChcChcLklyLklyLklyLklyLklyLkly
ThunderChcChcChcSChcSChcSChcSChcSChcSChcSChcSChcSChc------SChcSChcSChcChcChcChcChcChcChc

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