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: 8:29 am EDT Jul 13, 2025
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  • This
    Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly after 4pm.  Partly sunny, with a high near 90. Southeast wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    T-storms
    Likely


  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 5am.  Mostly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    T-storms
    Likely then
    Chance
    Showers

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 89. Calm wind.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday
    Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms between 8pm and 2am.  Mostly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Showers
    Likely then
    Scattered
    Showers

  • Tuesday

    Tuesday: Isolated showers before 11am, then isolated showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm 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

    Isolated
    T-storms then
    Showers
    Likely

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then isolated showers between 11pm and 2am.  Mostly cloudy, with a low around 71. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers
    Likely then
    Isolated
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 90. Chance of precipitation is 60%.

    High: 90 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday
    Night

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

    Low: 72 °F

    Showers
    Likely then
    Scattered
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 2pm.  Partly sunny and hot, with a high near 92. Chance of precipitation is 60%.

    High: 92 °F

    Partly Sunny
    then Showers
    Likely



  • This Afternoon: Showers and thunderstorms likely, mainly after 4pm. Partly sunny, with a high near 90. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 5am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. 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: Isolated showers before 11am, then isolated showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm 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 isolated showers between 11pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms 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 92. Chance of precipitation is 60%.

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

    Friday: Scattered showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.

    Friday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

    Saturday: Scattered showers and thunderstorms. Mostly 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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