Skip Navigation Linksweather.gov 
NOAA logo - Click to go to the NOAA homepageNational Weather Service Forecast Office NWS logo - Click to go to the NWS homepage
Baltimore, MD/Washington, D.C.
 
 
 Point Forecast: Washington-Dulles International Airport VA
 38.95N 77.44W (Elev. 87 m)
Last Update: 7:31 am EDT Jul 31, 2021
Tabular Forecast
[hide menu]Get as XML
Weather ElementsWeather/PrecipitationFire Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Fog
Mixing Height  
Haines Index
Lightning Activity Level
Trans. Wind  
Vent Rate (x1000 mph-m)
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index

48-Hour Period Starting:       Back 2 Days  

Date07/3108/01
Hour (EDT)101112131415161718192021222300010203040506070809
Temperature (°C)212224262627282827262423222120191918181819192021
Dewpoint (°C)121212121213131313131414151616161617171718181819
Heat Index (°C)242626272727272624
Surface Wind (mph)333333555553335332233356
Wind DirNENNWWWWWSWSSSESESESESSSSSSSSS
Gust
Sky Cover (%)725834373241547067686467585164656163737774747881
Precipitation Potential (%)100111213566665152429354963626262
Relative Humidity (%)595348434241404042475257647178818490939393909090
Rain------------------------------SChcSChcChcChcChcLklyLklyLklyLkly
Thunder------------------------------------------------
Fog------------------------------------------------

Date08/02
Hour (EDT)101112131415161718192021222300010203040506070809
Temperature (°C)222223242526272726262423222121201918171717171820
Dewpoint (°C)191919191919191919191919181818171716161616161615
Heat Index (°C)2425262828262624
Surface Wind (mph)777667898876666787777899
Wind DirSSSSSSSSSSSSWWWWNWNWNWNWNWNWNWNWNW
Gust
Sky Cover (%)848679726459544943383328242014823343325
Precipitation Potential (%)6269696945454542424212121211111122211100
Relative Humidity (%)848481746967626264677176798484848487939393908473
RainLklyLklyLklyLklyChcChcChcChcChcChc----------------------------
Thunder--SChcSChcSChcChcChcChcChcChcChc----------------------------
Fog------------------------------------------------

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

Webmaster
NOAA's National Weather Service
Baltimore, MD/Washington, D.C.
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities