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
[hide menu]Get as XML
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)151617181920212223000102030405060708091011121314
Temperature (°F)888988878682807777767574747473737375778082848686
Dewpoint (°F)757576767576767675757474747473737375767777787778
Heat Index (°F)989999989589867777767575778790959798
Surface Wind (mph)666666533322222222222335
Wind DirSESESESSSSSESSSSSSSSESESSSSSSS
Gust
Sky Cover (%)817570697060616268656764616967596381697057555964
Precipitation Potential (%)716354464340424345484324201615131114101018323941
Relative Humidity (%)6664687070828897949797100100100100100100100979185827577
RainLklyLklyChcChcChcChcChcChcChcChcChcSChcSChcSChcSChc----------SChcChcChcChc
ThunderChcChcChcChcChcChcChcChcChcChcChc------------------SChcChcChcChc

Date07/15
Hour (EDT)151617181920212223000102030405060708091011121314
Temperature (°F)878685838179777676757574737373737475778082848586
Dewpoint (°F)787777777776767675757474737373737374757677777777
Heat Index (°F)1009796928879777676757575778690949697
Surface Wind (mph)555333222222222222222335
Wind DirSSSSSWSSESESSSSWNWNWNWNWNWNNEEESES
Gust
Sky Cover (%)625967768984777879787776777980797978736863697581
Precipitation Potential (%)433851648353535353535323232323232330303030303071
Relative Humidity (%)7575778288919710097100971001001001001009797948885807775
RainChcChcChcLklyOcnlChcChcChcChcChcChcSChcSChcSChcSChcSChcSChcChcChcChcChcChcChcLkly
ThunderChcChcChcLklyLklyChcChcChcSChcSChcSChcSChcSChcSChcSChcSChcSChc------SChcSChcSChcChc

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
Hazardous Weather Briefing Page
Past Weather InformationInteractive Forecast Map
Home