Point Forecast: Fairfax VA
 38.85N 77.29W (Elev. 400 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)070809101112131415161718192021222300010203040506
Temperature (°F)737577798184858687868483838179787776767575747473
Dewpoint (°F)737475757576767675767676767576757574747474747473
Heat Index (°F)7577798793949696969391918779787776767575
Surface Wind (mph)222223355555553333333556
Wind DirNNNNNNWNWWSSSSSSSSSSSSSSSS
Gust
Sky Cover (%)695049464835355661676959574935454855554938414261
Precipitation Potential (%)10635611193442515439361517191854568910
Relative Humidity (%)1009794888277757268727780808291919494949797100100100
Rain------------SChcChcChcChcChcChcChcSChcSChcSChcSChc--------------
Thunder------------SChcChcChcChcChcChcChcSChcSChcSChc----------------

Date07/17
Hour (EDT)070809101112131415161718192021222300010203040506
Temperature (°F)747679818385878888878584828179787777777777767676
Dewpoint (°F)737576777777777777777777777776767575747474747474
Heat Index (°F)767988929699100100999694908879787777777777767676
Surface Wind (mph)66678910101010109988777777888
Wind DirSSSWSWSSSSSSSSSSSSSSSWSWSWSWSWSW
Gust
Sky Cover (%)535176696268737979797979797672696566666758494039
Precipitation Potential (%)1027272727272768686868686821212121212166666
Relative Humidity (%)979791888277727070727780858891949494909090949494
Rain--ChcChcChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc----------
Thunder--------ChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChcSChcSChc----------

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