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: Reston VA
 38.95N 77.36W (Elev. 446 ft)
Last Update: 10:31 pm EDT Sep 21, 2020
Tabular Forecast
[hide menu]  |  Font Size: A A A   Get as XML
Weather ElementsWeather/PrecipitationFire Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

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

48-Hour Period Starting:       Back 2 Days  

Date09/22
Hour (EDT)000102030405060708091011121314151617181920212223
Temperature (°F)474646454444444043485460646768707171696663605958
Dewpoint (°F)424141414040404040414241414140414143444444444443
Heat Index (°F)
Surface Wind (mph)335555666677788999876678
Wind DirNNNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWWWWNWNW
Gust
Sky Cover (%)357766131926262525262729313437394244464951
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)8383838686868610089776449433936353436404550555757
Rain------------------------------------------------
Thunder------------------------------------------------

Date09/23
Hour (EDT)000102030405060708091011121314151617181920212223
Temperature (°F)575656555554525254586469727476777878757268666462
Dewpoint (°F)424242434343434445474850515253545555555454545454
Heat Index (°F)7677787875
Surface Wind (mph)877777777889999988877766
Wind DirNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWWWWWWWWWW
Gust
Sky Cover (%)535658575655545352525151515252535455565657585959
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)575959646466717471675651484645454545505361657075
Rain------------------------------------------------
Thunder------------------------------------------------

Radar and Satellite (Click for larger image)
Link to Local Radar Data Link to Satellite Data
Additional Forecasts and Information
International System of 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