Point Forecast: 2 Miles S Washington-Dulles International Airport VA
 38.93N 77.45W (Elev. 91 m)
Last Update: 1:30 pm EDT Jul 13, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

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

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

48-Hour Period Starting:       Back 2 Days  

Date07/1307/14
Hour (EDT)171819202122230001020304050607080910111213141516
Temperature (°C)313130282725252424232323232323242527282930303130
Dewpoint (°C)242424242424242423232323232323242425252625262625
Heat Index (°C)373735323025252424242531323536373836
Surface Wind (mph)666653332222222222233555
Wind DirSESSSSSESSSSSSSSESESSSSSSSSS
Gust
Sky Cover (%)706970606162686567646169675963816970575559646259
Precipitation Potential (%)544643404243454843242016151311141010183239414338
Relative Humidity (%)6870708288979497971001001001001001001009791858275777575
RainChcChcChcChcChcChcChcChcChcSChcSChcSChcSChc----------SChcChcChcChcChcChc
ThunderChcChcChcChcChcChcChcChcChc------------------SChcChcChcChcChcChc

Date07/15
Hour (EDT)171819202122230001020304050607080910111213141516
Temperature (°C)292827262524242424232323232323242527282929303030
Dewpoint (°C)252525242424242423232323232323232424252525252524
Heat Index (°C)363331262524242424242530323436363636
Surface Wind (mph)533322222222222222233555
Wind DirSSSWSSESESSSSWNWNWNWNWNWNNEEESESSS
Gust
Sky Cover (%)677689847778797877767779807979787368636975818181
Precipitation Potential (%)516483535353535353232323232323303030303030717171
Relative Humidity (%)7782889197100971009710010010010010097979488858077757572
RainChcLklyOcnlChcChcChcChcChcChcSChcSChcSChcSChcSChcSChcChcChcChcChcChcChcLklyLklyLkly
ThunderChcLklyLklyChcChcChcSChcSChcSChcSChcSChcSChcSChcSChcSChc------SChcSChcSChcChcChcChc

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