Point Forecast: 2 Miles S Washington-Dulles International Airport VA
 38.93N 77.45W (Elev. 91 m)
Last Update: 10:30 am 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)121314151617181920212223000102030405060708091011
Temperature (°C)293031313130292928262625242424242323232324262829
Dewpoint (°C)242424242424242424242424242424242323232324252626
Heat Index (°C)3436373737363434322626252424242424263335
Surface Wind (mph)223335555333222233556678
Wind DirNWNWSESSSSESSSSSSSSSSSSSSSWSWS
Gust
Sky Cover (%)312851576869606148464449495354333447645751746963
Precipitation Potential (%)8152636525440411716181544335610926262626
Relative Humidity (%)777270686872757782919494979710010010010010010097948882
Rain--SChcChcChcChcChcChcChcSChcSChcSChcSChc----------------ChcChcChcChc
Thunder--SChcChcChcChcChcChcChcSChcSChcSChc------------------------Chc

Date07/17
Hour (EDT)121314151617181920212223000102030405060708091011
Temperature (°C)303131313130292827262625252525242424242426272931
Dewpoint (°C)262626262525252525242424242424242323232424242424
Heat Index (°C)373839393736363331262625252525242424242426313437
Surface Wind (mph)999101010987666666666666677
Wind DirSSSSSSSSSSSSSSSSSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)697480808080808074726967676868615548454340383735
Precipitation Potential (%)262670707070707023232323232366666612121212
Relative Humidity (%)777572727275778288919494949494979797979794857770
RainChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc--------------------
ThunderChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc--------------------

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