National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Overcast

76°F

24°C

Humidity 69%
Wind Speed SE 9 mph
Barometer 29.98 in (1015.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 22 Aug 1:56 pm EDT
Extended Forecast for

2 Miles SSW Duncannon PA

  • This Afternoon

    This Afternoon: A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. South wind around 6 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely. Mostly cloudy, with a low around 64. Southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 80. Light southwest wind becoming west 5 to 9 mph in the morning.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. West wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77. West wind 3 to 8 mph. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. South wind around 6 mph. Chance of precipitation is 20%.
Tonight
Showers and thunderstorms likely. Mostly cloudy, with a low around 64. Southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Mostly sunny, with a high near 80. Light southwest wind becoming west 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 58. West wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 77. West wind 3 to 8 mph. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Mostly cloudy, with a low around 64.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Duncannon PA
 40.38°N 77.06°W (Elev. 440 ft)
Last Update:
2:31 pm EDT Aug 22, 2026
Forecast Valid:
2pm EDT Aug 22, 2026-6pm EDT Aug 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation