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

58°F

14°C

Humidity 90%
Wind Speed W 5 mph
Barometer 29.85 in (1011.0 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 12 Oct 6:56 am EDT
Extended Forecast for

Duncannon PA

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 74. Northwest wind around 7 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy during the early evening, then gradual clearing, with a low around 54. Light and variable wind.

    Low: 54 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. South wind 3 to 6 mph.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 80. West wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 80 °F

    Sunny then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

Detailed Forecast

Columbus Day
Mostly sunny, with a high near 74. Northwest wind around 7 mph.
Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy during the early evening, then gradual clearing, with a low around 54. Light and variable wind.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. South wind 3 to 6 mph.
Wednesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 80. West wind 3 to 7 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Thursday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
Areas of frost. Otherwise, mostly clear, with a low around 35.
Sunday
Areas of frost. Otherwise, sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Duncannon PA
 40.4°N 77.02°W (Elev. 413 ft)
Last Update:
2:21 am EDT Oct 12, 2026
Forecast Valid:
7am EDT Oct 12, 2026-6pm EDT Oct 18, 2026
 
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Additional Resources

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Chance of Precipitation