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)171819202122230001020304050607080910111213141516
Temperature (°F)898886848078777776757575747374778082848688888887
Dewpoint (°F)767676767676767675757574747374767677777878787877
Heat Index (°F)1009996938678777776757575778690949810210210299
Surface Wind (mph)555332222222233556678999
Wind DirSSESSESSSSSSSSSSSSSSSSSSSSW
Gust
Sky Cover (%)696061524032484157545756556458665665715855657180
Precipitation Potential (%)383124966775545565461091627364966
Relative Humidity (%)66687277889497979710010097100100100978885807772727272
RainChcChcSChc--------------------------------SChcChcChcChcLkly
ThunderChcChcSChc--------------------------------SChcSChcChcChcLkly

Date07/17
Hour (EDT)171819202122230001020304050607080910111213141516
Temperature (°F)858381807978787877777776767677788185889092939392
Dewpoint (°F)777676767676767675757574747575767675757575757474
Heat Index (°F)96918786797878787777777676767778879498101103105103102
Surface Wind (mph)988766666666666677888889
Wind DirSWSWSSSSSSSSSSWSWSWSWSWSWSWSWSWWWWSW
Gust
Sky Cover (%)868173726667686767666565645750434138364350575757
Precipitation Potential (%)706259212121212121444444999999363636
Relative Humidity (%)778085889194949494949494949794948572666258565456
RainLklyLklyLklySChcSChcSChcSChcSChcSChc------------------------ChcChcChc
ThunderLklyLklyLklySChcSChcSChcSChcSChcSChc------------------------ChcChcChc

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