Point Forecast: Chewsville MD
 39.62N 77.68W (Elev. 564 ft)
Last Update: 10:30 am 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)101112131415161718192021222300010203040506070809
Temperature (°F)798284858686878785858379787776757474747473747679
Dewpoint (°F)747475757474747474747474737374737472727272737475
Heat Index (°F)798892949494959593939079787776757679
Surface Wind (mph)222233353332222222222233
Wind DirNNNESESESESESESESESESESESESESSSESSSESSS
Gust
Sky Cover (%)292632404543515256594238394245354333535856505559
Precipitation Potential (%)123623222623343917557323324772323
Relative Humidity (%)8577747268686565707074858587949410093939397979488
Rain--------SChcSChcChcSChcChcChcSChc----------------------SChcSChc
Thunder--------SChcSChcChcSChcChcChcSChc--------------------------

Date07/17
Hour (EDT)101112131415161718192021222300010203040506070809
Temperature (°F)828486878888878684828078767575757575747474757779
Dewpoint (°F)757575767676767675757474747474737373737373747474
Heat Index (°F)899295989999989692898478767575757575757779
Surface Wind (mph)355666777666555333333555
Wind DirSSSSSSSSSSSSSSSSSSSSSWSWSWSW
Gust
Sky Cover (%)575565758585858585855963687271696865625952443735
Precipitation Potential (%)232323237777777777773838383838381212121212121212
Relative Humidity (%)797470706868707274798288949797949494979797979085
RainSChcSChcSChcSChcOcnlOcnlOcnlOcnlOcnlOcnlChcChcChcChcChcChc----------------
Thunder--SChcSChcSChcLklyLklyLklyChcChcChcChcChcChcSChcSChcSChc----------------

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