Point Forecast: 2 Miles S Washington-Dulles International Airport VA
 38.93N 77.45W (Elev. 299 ft)
Last Update: 10:30 am EDT Jul 13, 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  

Date07/1307/14
Hour (EDT)121314151617181920212223000102030405060708091011
Temperature (°F)838586878786858381797877767575757573747475798183
Dewpoint (°F)757576757576767575757475747474747373737375757676
Heat Index (°F)909496969696949087797877767575757575798791
Surface Wind (mph)666666666533222222222222
Wind DirSESESESESESESSSESESSESSSSSSSSSSSS
Gust
Sky Cover (%)595051534554697069565765726857656967746564535353
Precipitation Potential (%)232427292331535553343539403322201815141129292929
Relative Humidity (%)77727268687275778288889494979797941009797100888580
RainSChcSChcChcChcSChcChcChcLklyChcChcChcChcChcChcSChcSChcSChcSChc----ChcChcChcChc
ThunderSChcSChcChcChcSChcChcChcLklyChcChcChcChcChcChc------------------Chc

Date07/15
Hour (EDT)121314151617181920212223000102030405060708091011
Temperature (°F)858788888786858381797877767675747373737475777981
Dewpoint (°F)767575747475747474747474747474737373737374747575
Heat Index (°F)94969897959593908679787776767575777987
Surface Wind (mph)233333333322211111122222
Wind DirSSSSSWSWSWSSSSSESSSSSSSWWWSWSSE
Gust
Sky Cover (%)637383838383838367707275747271747881838587817670
Precipitation Potential (%)292974747474747440404040404021212121212136363636
Relative Humidity (%)756866636570707479858890949497971001001009797908882
RainChcChcLklyLklyLklyLklyLklyLklyChcChcChcChcChcChcSChcSChcSChcSChcSChcSChcChcChcChcChc
ThunderChcChcLklyLklyLklyLklyLklyLklyChcChcChcSChcSChcSChcSChcSChcSChc------------SChc

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