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Baltimore, MD/Washington, D.C.
 
 
 Point Forecast: Rockville MD
 39.08N 77.16W (Elev. 430 ft)
Last Update: 1:30 am EDT May 18, 2021
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)
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index

48-Hour Period Starting:       Back 2 Days  

Date05/1805/19
Hour (EDT)020304050607080910111213141516171819202122230001
Temperature (°F)545352525254576267717576787879797876736866646261
Dewpoint (°F)484848484748494848484948474747474748495049494949
Heat Index (°F)75767878787776
Surface Wind (mph)222222255555335655323333
Wind DirSSWSWSWSWSWSWSWSWSWSWSWSWSWSWWSWSWSSSSSSW
Gust
Sky Cover (%)383633303131242526262832343332312719151397912
Precipitation Potential (%)222222222222222222222222
Relative Humidity (%)727477807474675447424138363333333537445154586265
Rain------------------------------------------------
Thunder------------------------------------------------

Date05/20
Hour (EDT)020304050607080910111213141516171819202122230001
Temperature (°F)615958585961646873778081828383838280787572696765
Dewpoint (°F)494950515151535455555351504949505152535454545454
Heat Index (°F)7880818182828181807875
Surface Wind (mph)322222233222235665322222
Wind DirSWSWWWWWWNWNWNWWWWWWWWWWSWSSSSW
Gust
Sky Cover (%)1412868131514119121720191716161717151081219
Precipitation Potential (%)222222222222333333111111
Relative Humidity (%)676975807775675953453934323030323438424853596365
Rain------------------------------------------------
Thunder------------------------------------------------

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