Point Forecast: 2 Miles S Washington-Dulles International Airport VA
 38.93N 77.45W (Elev. 299 ft)
Last Update: 1:31 pm EDT Jul 15, 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  

Date07/1507/16
Hour (EDT)212223000102030405060708091011121314151617181920
Temperature (°F)807877777675757574737477808284868888888785838180
Dewpoint (°F)767676767575757474737476767777787878787777767676
Heat Index (°F)867877777675757577869094981021021029996918786
Surface Wind (mph)322222222335566789999887
Wind DirSSSSSSSSSSSSSSSSSSSSWSWSWSS
Gust
Sky Cover (%)403248415754575655645866566571585565718086817372
Precipitation Potential (%)6677554556546109162736496670625921
Relative Humidity (%)88949797971001009710010010097888580777272727277808588
Rain------------------------------SChcChcChcChcLklyLklyLklyLklySChc
Thunder------------------------------SChcSChcChcChcLklyLklyLklyLklySChc

Date07/17
Hour (EDT)212223000102030405060708091011121314151617181920
Temperature (°F)797878787777777676767778818588909293939291908886
Dewpoint (°F)767676767575757474757576767575757575747474747475
Heat Index (°F)797878787777777676767778879498101103105103102101999795
Surface Wind (mph)666666666666778888899876
Wind DirSSSSSSSSWSWSWSWSWSWSWSWSWWWWSWSWSWSWSW
Gust
Sky Cover (%)666768676766656564575043413836435057575757575738
Precipitation Potential (%)21212121214444449999993636363636369
Relative Humidity (%)919494949494949494979494857266625856545658606370
RainSChcSChcSChcSChcSChc------------------------ChcChcChcChcChcChc--
ThunderSChcSChcSChcSChcSChc------------------------ChcChcChcChcChcChc--

Additional Forecasts and Information
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