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 Point Forecast: Herndon VA
 38.97N 77.38W (Elev. 354 ft)
Last Update: 10:30 pm EDT Jul 19, 2019
Tabular Forecast
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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)

48-Hour Period Starting:       Forward 2 Days  

Date07/1907/20
Hour (EDT)230001020304050607080910111213141516171819202122
Temperature (°F)84838280797877777982858993969799100100999693908886
Dewpoint (°F)727272737373737474747475767574747372727170717172
Heat Index (°F)90888784797877777988939910610810911111111010910499969492
Surface Wind (mph)665335333567777778887665
Wind DirWWWWWSWWWWWWWNWWWWWWWWWWWSW
Gust
Sky Cover (%)484023151720212327262935383734323439414244454649
Precipitation Potential (%)777333333555555101010101010141414
Relative Humidity (%)677072798285879085777064585148454241424547545763
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/21
Hour (EDT)230001020304050607080910111213141516171819202122
Temperature (°F)848382818079797982858790939496979898989693908785
Dewpoint (°F)737373737374747475757574747373727171717172727272
Heat Index (°F)908987868479797989949699103103106106106106106104101979491
Surface Wind (mph)553335555566776667766555
Wind DirSWWWWWWWWWWWWWWWWWWWWWWWW
Gust
Sky Cover (%)504741383633313131313131313542464954565758586578
Precipitation Potential (%)141414333333121212121212292929292929373737
Relative Humidity (%)707274777985858579726860545148454242424551566165
Rain------------------------------ChcChcChcChcChcChcChcChcChc
Thunder------------------------------ChcChcChcChcChcChcChcChcChc

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