Point Forecast: 2 Miles WSW Great Falls VA
 39.01N 77.32W (Elev. 348 ft)
Last Update: 4:30 am EDT Jul 15, 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  

Date07/1507/16
Hour (EDT)050607080910111213141516171819202122230001020304
Temperature (°F)737273757779818485868786858483817978777676757574
Dewpoint (°F)727272747575767676757575757576757575757575747474
Heat Index (°F)7577798793949596959492918779787776767575
Surface Wind (mph)222222222233333333322333
Wind DirNNNNNNNNNESESESESSESSSSSSSSS
Gust
Sky Cover (%)696756505150483330485465685859473347465153454235
Precipitation Potential (%)119862347152431475237381718181654335
Relative Humidity (%)97100979794888577757068707274808288919497979797100
Rain----------------SChcSChcChcChcChcChcChcSChcSChcSChcSChc----------
Thunder----------------SChcSChcChcChcChcChcChcSChcSChcSChc------------

Date07/17
Hour (EDT)050607080910111213141516171819202122230001020304
Temperature (°F)747374767982848687888886858482817978777777777675
Dewpoint (°F)747374757677787878777776767676767675757574747474
Heat Index (°F)767990959810010010096949389877978777777777675
Surface Wind (mph)355666778889998776666666
Wind DirSSSSSWSWSSSSSSSSSSSSSSSWSWSWSW
Gust
Sky Cover (%)645350527167626874808080808080777370666667676154
Precipitation Potential (%)6910282828282828696969696969252525252525777
Relative Humidity (%)100100100979185827775707072757782859191949490909497
Rain------ChcChcChcChcChcChcLklyLklyLklyLklyLklyLklyChcChcChcChcChcChc------
Thunder------------ChcChcChcLklyLklyLklyLklyLklyLklyChcChcChcSChcSChcSChc------

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