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.

Fair with Haze

66°F

19°C

Humidity 84%
Wind Speed W 5 mph
Barometer 29.91 in (1012.9 mb)
Dewpoint 61°F (16°C)
Visibility 3.00 mi
Last update 14 Oct 7:56 am EDT
Extended Forecast for

Duncannon PA

  • Today

    Today: Scattered showers, mainly before noon. Increasing clouds, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 81 °F

    Scattered
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. North wind around 6 mph.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Light and variable wind.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 11pm. Low around 55. Light southeast wind becoming south 5 to 9 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Showers

  • Friday

    Friday: Showers, mainly before 8am. High near 77. South wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 77 °F

    Showers

  • Friday Night

    Friday Night: Showers likely before 8pm. Mostly cloudy, with a low around 41. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Showers
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 1am. Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Frost then
    Sunny

Detailed Forecast

Today
Scattered showers, mainly before noon. Increasing clouds, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy, with a low around 53. North wind around 6 mph.
Thursday
Mostly sunny, with a high near 67. Light and variable wind.
Thursday Night
Showers, mainly after 11pm. Low around 55. Light southeast wind becoming south 5 to 9 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers, mainly before 8am. High near 77. South wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely before 8pm. Mostly cloudy, with a low around 41. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 54.
Saturday Night
Areas of frost after 1am. Otherwise, mostly clear, with a low around 35.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Duncannon PA
 40.4°N 77.02°W (Elev. 413 ft)
Last Update:
7:09 am EDT Oct 14, 2026
Forecast Valid:
8am EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation