Point Forecast: Reston VA
 38.95N 77.36W (Elev. 446 ft)
Last Update: 1:31 pm EDT Jul 15, 2025
Tabular Forecast
[hide menu]Get as XML
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)230001020304050607080910111213141516171819202122
Temperature (°F)777776767675747374777982848687888887858381807978
Dewpoint (°F)767574747574747374757676767676777676767675757575
Heat Index (°F)7777767676757779899396981009998949187857978
Surface Wind (mph)222222335566788999988777
Wind DirSSSSSSSSSSSSSSSSSSWSWSSSSS
Gust
Sky Cover (%)484353475354585253655566725961597680867774806566
Precipitation Potential (%)7756555655711101827334662706360212121
Relative Humidity (%)979494949797100100100949182777270706870758082858891
Rain--------------------------SChcChcChcChcLklyLklyLklyLklySChcSChcSChc
Thunder--------------------------SChcSChcChcChcLklyLklyLklyLklySChcSChcSChc

Date07/17
Hour (EDT)230001020304050607080910111213141516171819202122
Temperature (°F)787877777776767677788184879092939392908987868482
Dewpoint (°F)757574747473737474757574747474747473737374757576
Heat Index (°F)7878777777767676777887919599102103103101989795959289
Surface Wind (mph)667777777778889999877666
Wind DirSSSWSWSWSWSWSWSWSWSWSWSWSWWWWSWSWSWSWSWSWSW
Gust
Sky Cover (%)676666656463625548413936344249575757575757413836
Precipitation Potential (%)212121555555999999363636363636101010
Relative Humidity (%)919190909090909490918272656056545454585965707482
RainSChcSChcSChc------------------------ChcChcChcChcChcChc------
ThunderSChcSChcSChc------------------------ChcChcChcChcChcChc------

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
Hazardous Weather Briefing Page
Past Weather InformationInteractive Forecast Map
Home