Point Forecast: 2 Miles S Washington-Dulles International Airport VA
 38.93N 77.45W (Elev. 91 m)
Last Update: 1:31 pm EDT Jul 15, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
Vent Rate (x1000 mph-m)
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 (°C)323130292726252524242424232323252728293031313131
Dewpoint (°C)242424242424242424242423232323242425252626262625
Heat Index (°C)383736343026252524242424253032343739393937
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 (°C)292827272626262625252524242425262729313233343433
Dewpoint (°C)252424242424242424242423232424242424242424242323
Heat Index (°C)363331302626262625252524242425263134373839413939
Surface Wind (mph)988766666666666677888889
Wind DirSWSWSSSSSSSSSSWSWSWSWSWSWSWSWSWWWWSW
Gust
Sky Cover (%)868173726667686767666565645750434138364350575757
Precipitation Potential (%)706259212121212121444444999999363636
Relative Humidity (%)778085889194949494949494949794948572666258565456
RainLklyLklyLklySChcSChcSChcSChcSChcSChc------------------------ChcChcChc
ThunderLklyLklyLklySChcSChcSChcSChcSChcSChc------------------------ChcChcChc

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