Point Forecast: Chambersburg PA
 39.93N 77.66W (Elev. 617 ft)
Last Update: 6:13 pm EDT Jul 15, 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  

Date07/1507/16
Hour (EDT)192021222300010203040506070809101112131415161718
Temperature (°F)858380787775747373727271727579828486888888868382
Dewpoint (°F)727374737372727272727171717374757576767576767575
Heat Index (°F)9189857877757579899296999899969089
Surface Wind (mph)221111111111112233566655
Wind DirSESESESESESSSSESESESESSSSSSSSSSSS
Gust
Sky Cover (%)535153565862525748445354736153485973726973888984
Precipitation Potential (%)9874222123211223516243958816347
Relative Humidity (%)65728285889093979710097100979485797472686668727779
Rain----------------------------------SChcSChcChcLklyOcnlLklyChc
Thunder----------------------------------SChcSChcChcLklyLklyChcChc

Date07/17
Hour (EDT)192021222300010203040506070809101112131415161718
Temperature (°F)818077767574747372727272737578828587899091919089
Dewpoint (°F)747474747373727272717171727374747576767675757474
Heat Index (°F)868577767575788894981001021021029998
Surface Wind (mph)322222222222335566777776
Wind DirSSSSSSSSSSSSWSWSWSWSWWWWWWWWW
Gust
Sky Cover (%)788062687472716969696962554843383341495757575757
Precipitation Potential (%)494343434343431414141414141818181818183535353535
Relative Humidity (%)7982909494979397100979797979488777270666460606061
RainChcChcChcChcChcChcChc------------SChcSChcSChcSChcSChcSChcChcChcChcChcChc
ThunderChcChcChcChcSChcSChcSChc------------------SChcSChcSChcChcChcChcChcChc

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