Point Forecast: Mount Gretna PA
 40.26N 76.47W (Elev. 699 ft)
Last Update: 2:32 am EDT Jul 14, 2025
Tabular Forecast
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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  
20ft Wind  
Vent Rate (x1000 mph-ft)
Davis Stability Index
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index
Ceiling Height
Visibility
Thunder Potential

48-Hour Period Starting:       Back 2 Days  

Date07/1407/15
Hour (EDT)060708091011121314151617181920212223000102030405
Temperature (°F)737373747677798081818180787875747474737373727272
Dewpoint (°F)727272727374747575757574747472727171727171707070
Heat Index (°F)7677798587878785787875
Surface Wind (mph)563333355555322222222222
Wind DirSSSESSSSSSSSSSNENEESEEEENEENENE
Gust
Sky Cover (%)88888785838180799092921009910090868481838271747671
Precipitation Potential (%)352917131416334485796976738742323432302928231511
Relative Humidity (%)979797939090858582828282888890939090979393939393
RainChcChcSChc----SChcChcChcOcnlOcnlLklyOcnlLklyOcnlChcChcChcChcChcChcChcSChcSChc--
ThunderSChcSChc------SChcChcChcOcnlOcnlLklyLklyLklyLklyChcChcChcSChcSChcSChc--------

Date07/16
Hour (EDT)060708091011121314151617181920212223000102030405
Temperature (°F)717273757778808283848483828179787675747474747373
Dewpoint (°F)707072727273737474747373737373727271717171717171
Heat Index (°F)757778848890919089878679787675
Surface Wind (mph)222222222233333322222222
Wind DirNENENENENENEESESESESESESSSSSSSSSSSESE
Gust
Sky Cover (%)426562635750556166666666666640393938424751586471
Precipitation Potential (%)8625252525252549494949494920202020202017171717
Relative Humidity (%)979397908585797774727072747782828787909090909393
Rain----ChcChcChcChcChcChcChcChcChcChcChcChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChc
Thunder----------SChcSChcSChcChcChcChcChcChcChc--------------------

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