Point Forecast: 2 Miles S Washington-Dulles International Airport VA
 38.93N 77.45W (Elev. 299 ft)
Last Update: 9:25 am 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)101112131415161718192021222300010203040506070809
Temperature (°F)808284868788888685848279787776767575747473747679
Dewpoint (°F)767676767676767676767676767575757575747473747577
Heat Index (°F)8689939698999996949389797877767675757679
Surface Wind (mph)222233355553332222335566
Wind DirNNNWNWSESSSSESSSSSSSSSSSSSSSW
Gust
Sky Cover (%)454831285157686960614846444949535433344764575174
Precipitation Potential (%)44815263652544041171618154433561092626
Relative Humidity (%)888277727068687275778291949497971001001001001001009794
Rain------SChcChcChcChcChcChcChcSChcSChcSChcSChc----------------ChcChc
Thunder------SChcChcChcChcChcChcChcSChcSChcSChc----------------------

Date07/17
Hour (EDT)101112131415161718192021222300010203040506070809
Temperature (°F)828486878888878685838179787777777776757575767881
Dewpoint (°F)787878787878777777777776767575757575747474757676
Heat Index (°F)919598100102102999796928879787777777776757575767887
Surface Wind (mph)789991010109876666666666666
Wind DirSWSSSSSSSSSSSSSSSSSSWSWSWSWSWSW
Gust
Sky Cover (%)696369748080808080807472696767686861554845434038
Precipitation Potential (%)262626267070707070702323232323236666661212
Relative Humidity (%)888277757272727577828891949494949497979797979485
RainChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc----------------
Thunder--ChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc----------------

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