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 Point Forecast: Vienna VA
 38.89N 77.25W (Elev. 348 ft)
Last Update: 1:32 am EDT May 6, 2021
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

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

48-Hour Period Starting:       Back 2 Days  

Date05/0605/07
Hour (EDT)040506070809101112131415161718192021222300010203
Temperature (°F)484747464952545859616364656563626058575654535251
Dewpoint (°F)373736363636363636353536353636363839393939393939
Heat Index (°F)
Surface Wind (mph)1111101010101111101098776532222232
Wind DirNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNNNEESESSS
Gust181818
Sky Cover (%)657101113171920222330455253555653464243444544
Precipitation Potential (%)000000000011111133333377
Relative Humidity (%)656865686154504442383535333436384449515357596163
Rain------------------------------------------------
Thunder------------------------------------------------

Date05/08
Hour (EDT)040506070809101112131415161718192021222300010203
Temperature (°F)504950515355586061616160595756555453515049484746
Dewpoint (°F)394041424343424242424243444545454443434241414040
Heat Index (°F)
Surface Wind (mph)233355677876688888888777
Wind DirSESESESESESESSSSSSWWWWNWNWNWNWNWNWNWWW
Gust
Sky Cover (%)424146576264687076879293949492878473514041444542
Precipitation Potential (%)79993939393939398383838383834343434343431717
Relative Humidity (%)667171716964555149494953576466696969747474777679
Rain--------ChcChcChcChcChcChcOcnlOcnlOcnlOcnlOcnlOcnlChcChcChcChcChcChcSChcSChc
Thunder--------------------SChcSChcSChcSChcSChcSChc----------------

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