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 Point Forecast: Washington-Dulles International Airport VA
 38.95N 77.44W (Elev. 87 m)
Last Update: 5:30 am EDT Jul 27, 2021
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Fog
Mixing Height  
Haines Index
Lightning Activity Level
Trans. Wind  
Vent Rate (x1000 mph-m)
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index

48-Hour Period Starting:       Back 2 Days  

Date07/2707/28
Hour (EDT)060708091011121314151617181920212223000102030405
Temperature (°C)212124262829313233333333323231282725242423222222
Dewpoint (°C)192020192019191817171716171718181818191919191918
Heat Index (°C)242629313232333434333233312828252424
Surface Wind (mph)223566665555665333332222
Wind DirNWNWNWNNNNNNNNNNNEESESSSWSWSWWWW
Gust
Sky Cover (%)2628292420151515151414131011141053764476
Precipitation Potential (%)001111113333333333331111
Relative Humidity (%)847974696353484440373736394146556067717479818181
Rain------------------------------------------------
Thunder------------------------------------------------
Fog------------------------------------------------

Date07/29
Hour (EDT)060708091011121314151617181920212223000102030405
Temperature (°C)212224262829313233333332323129282624242323222121
Dewpoint (°C)181918181818181717171717171818181819191919191818
Heat Index (°C)2426283032333333333332313029262424
Surface Wind (mph)225677777777766655332222
Wind DirNWNWNWNWNNNWNWNWNWNWWNWNEEESESESESSSWSWW
Gust
Sky Cover (%)645421379111415172021232424242322263438
Precipitation Potential (%)112223332525252525259999993333
Relative Humidity (%)848171625550454140404041424650566271747679818484
Rain----------------ChcChcChcChcChcChc--------------------
Thunder----------------ChcChcChcChcChcChc--------------------
Fog------------------------------------------------

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