Point Forecast: Reston VA
 38.95N 77.36W (Elev. 446 ft)
Last Update: 1:30 am EDT Jul 16, 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  

Date07/1607/17
Hour (EDT)010203040506070809101112131415161718192021222300
Temperature (°F)777574747574757679818386878887878583838179787877
Dewpoint (°F)737474737373747475767676767777767676757575757474
Heat Index (°F)7775757576798791969810099989491908779787877
Surface Wind (mph)333333556677899998988767
Wind DirSSSSSSSSSSSSSSSSWSSSSWSWSWSSW
Gust
Sky Cover (%)616568636360636255576461635558678775737664646163
Precipitation Potential (%)9655565363712172330404035603424141413
Relative Humidity (%)8797100979497979488858072707072707580778288918890
Rain------------------------SChcSChcChcChcChcChcLklyChcSChc------
Thunder------------------------SChcSChcChcChcChcChcLklyChcSChc------

Date07/18
Hour (EDT)010203040506070809101112131415161718192021222300
Temperature (°F)777777767675767881848790929393929190898785838281
Dewpoint (°F)747474747373737475757575747473737474747475757574
Heat Index (°F)777777767675767887929610110210310210110199989594908986
Surface Wind (mph)778888898899999998877666
Wind DirSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWWW
Gust
Sky Cover (%)615840564723131839393843475252525252523238445048
Precipitation Potential (%)67101097788888828282828282866666
Relative Humidity (%)909090949094908882746862565452545860616572777979
Rain--------------------------ChcChcChcChcChcChc----------
Thunder--------------------------SChcSChcSChcChcChcChc----------

Additional Forecasts and Information
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