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: 1:02 pm EDT Jul 11, 2025




This Afternoon: A slight chance of showers, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 91. Light south wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Areas of fog after 3am. Otherwise, partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday: A chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming south around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 70. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.

Monday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

Tuesday: Mostly sunny, with a high near 91.

Tuesday Night: Partly cloudy, with a low around 70.

Wednesday: A chance of showers and thunderstorms. Partly sunny and hot, with a high near 92. Chance of precipitation is 40%.

Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.

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

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

Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 90.



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

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