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 Point Forecast: Washington-Dulles International Airport VA
 38.95N 77.44W (Elev. 87 m)
Last Update: 10:32 am EDT Jul 28, 2021
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Fog
Mixing Height  
Haines Index
Lightning Activity Level
Trans. Wind  
Vent Rate (x1000 mph-m)
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index

48-Hour Period Starting:       Back 2 Days  

Date07/2807/29
Hour (EDT)111213141516171819202122230001020304050607080910
Temperature (°C)303132333332313130282625242423232222222122232526
Dewpoint (°C)181817171717171718181919191919192019192021212121
Heat Index (°C)31323233333231323129262524242526
Surface Wind (mph)888777777655333222222236
Wind DirNNNNNNNNNENEEEESESESESESSSSSSWSW
Gust
Sky Cover (%)121417555555555556555137363837483841434851626249
Precipitation Potential (%)333242424393939414141202020999888101010
Relative Humidity (%)484542383839424348556469767681818787879393847672
Rain------SChcSChcSChcChcChcChcChcChcChcSChcSChcSChc------------------
Thunder------SChcSChcSChcChcChcChcChcChcChcSChcSChcSChc------------------
Fog------------------------------------------------

Date07/30
Hour (EDT)111213141516171819202122230001020304050607080910
Temperature (°C)282930313129292928282726252424232322222223242527
Dewpoint (°C)212121202020202021212121212121212120202019191918
Heat Index (°C)293132333331313131292826252424242528
Surface Wind (mph)78888898777666666667891013
Wind DirSWSWSWSWSWSSSSSSWWWWWWWWWNWNWNWNWNW
Gust
Sky Cover (%)373855605670807068656154504329222118171716151411
Precipitation Potential (%)212121585858646464515151363636202020141414000
Relative Humidity (%)656157535357575963656974798282848787878781766960
RainSChcSChcSChcLklyLklyLklyLklyLklyLklyChcChcChcChcChcChcSChcSChcSChc------------
Thunder------ChcChcChcChcChcChcChcChcChcChcChcChcSChcSChcSChc------------
Fog------------------------------------------------

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