7-Day Forecast 39.93°N 77.66°W (Text-Only)
NWS Forecast for: Chambersburg PA
Issued by: National Weather Service State College, PA
Last Update: 4:34 pm EDT Jul 13, 2025
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  • Tonight

    Tonight: Showers and thunderstorms likely before 4am, then a slight chance of showers.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 72. South wind 5 to 8 mph becoming calm  in the evening.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    T-storms
    Likely then
    Chance
    T-storms and
    Patchy Fog

  • Monday

    Monday: Showers and thunderstorms.  Patchy fog before 8am. High near 88. Calm wind.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Chance
    T-storms and
    Patchy Fog
    then T-storms

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    T-storms
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm, mainly after 2pm.  Partly sunny, with a high near 89. Calm wind.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 72. Calm wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 91. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday
    Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 2pm.  Partly sunny and hot, with a high near 93. Chance of precipitation is 60%.

    High: 93 °F

    Partly Sunny
    then Showers
    Likely


  • Thursday
    Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm.  Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Mostly Cloudy




  • Tonight: Showers and thunderstorms likely before 4am, then a slight chance of showers. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 72. South wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Monday: Showers and thunderstorms. Patchy fog before 8am. High near 88. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Monday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Tuesday: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 89. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Tuesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Wednesday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 91. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 93. Chance of precipitation is 60%.

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 92. Chance of precipitation is 50%.

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

    Saturday: A chance of showers. Mostly sunny, with a high near 90. Chance of precipitation is 40%.

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.



    Chambersburg PA
     39.93°N 77.66°W (Elev. 617 ft)

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