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  

Date07/16
Hour (EDT)000102030405060708091011121314151617181920212223
Temperature (°F)757473737272717275798284868888888683828180777675
Dewpoint (°F)727272727271717173747575767675767675757474747473
Heat Index (°F)7575798992969998999690898685777675
Surface Wind (mph)111111111223356665532222
Wind DirSSSSESESESESSSSSSSSSSSSSSSSS
Gust
Sky Cover (%)625257484453547361534859737269738889847880626874
Precipitation Potential (%)221232112235162439588163474943434343
Relative Humidity (%)90939797100971009794857974726866687277797982909494
Rain------------------------SChcSChcChcLklyOcnlLklyChcChcChcChcChcChc
Thunder------------------------SChcSChcChcLklyLklyChcChcChcChcChcChcSChc

Date07/17
Hour (EDT)000102030405060708091011121314151617181920212223
Temperature (°F)747473727272727375788285878990919190898785838179
Dewpoint (°F)737272727171717273747475767676757574747474747373
Heat Index (°F)757888949810010210210299989593908679
Surface Wind (mph)222222233556677777665332
Wind DirSSSSSSSWSWSWSWSWWWWWWWWWWWWWW
Gust
Sky Cover (%)727169696969625548433833414957575757575748525660
Precipitation Potential (%)434314141414141418181818181835353535353517171717
Relative Humidity (%)9793971009797979794887772706664606060616570747782
RainChcChc------------SChcSChcSChcSChcSChcSChcChcChcChcChcChcChcSChcSChcSChcSChc
ThunderSChcSChc------------------SChcSChcSChcChcChcChcChcChcChc--------

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