Point Forecast: Fairfax VA
 38.85N 77.29W (Elev. 400 ft)
Last Update: 1:30 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)020304050607080910111213141516171819202122230001
Temperature (°F)747373737273757779818485868786848383817978777676
Dewpoint (°F)737372727273747575757676767576767676757675757474
Heat Index (°F)757779879394969696939191877978777676
Surface Wind (mph)222222222233555555533333
Wind DirWNWNWWNNNNNNNWNWWSSSSSSSSSSS
Gust
Sky Cover (%)656170556769504946483535566167695957493545485555
Precipitation Potential (%)201613121110635611193442515439361517191854
Relative Humidity (%)971009797100100979488827775726872778080829191949494
RainSChcSChc------------------SChcChcChcChcChcChcChcSChcSChcSChcSChc----
Thunder----------------------SChcChcChcChcChcChcChcSChcSChcSChc------

Date07/17
Hour (EDT)020304050607080910111213141516171819202122230001
Temperature (°F)757574747374767981838587888887858482817978777777
Dewpoint (°F)747474747373757677777777777777777777777676757574
Heat Index (°F)757576798892969910010099969490887978777777
Surface Wind (mph)33556666789101010101099887777
Wind DirSSSSSSSSWSWSSSSSSSSSSSSSSSW
Gust
Sky Cover (%)493841426153517669626873797979797979767269656666
Precipitation Potential (%)56891010272727272727686868686868212121212121
Relative Humidity (%)979710010010097979188827772707072778085889194949490
Rain------------ChcChcChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc
Thunder------------------ChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc

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