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Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

12°F

-11°C

Humidity 46%
Wind Speed W 10 mph
Barometer 30.33 in (1027.9 mb)
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 20 Jan 7:56 am EST
Extended Forecast for

Duncannon PA

  • Today

    Today: Sunny, with a high near 21. Wind chill values as low as zero. West wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 21 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 10. Calm wind.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 34. Light southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

    High: 34 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. South wind around 6 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42. Southwest wind 5 to 11 mph, with gusts as high as 23 mph.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 16.

    High: 16 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 21. Wind chill values as low as zero. West wind 7 to 10 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 10. Calm wind.
Wednesday
Increasing clouds, with a high near 34. Light southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Wednesday Night
Mostly cloudy, with a low around 28. South wind around 6 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 42. Southwest wind 5 to 11 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 29.
Friday Night
Partly cloudy, with a low around 7.
Saturday
Mostly cloudy, with a high near 16.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 9. Chance of precipitation is 50%.
Sunday
A chance of snow. Mostly cloudy, with a high near 19. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 22.
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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:
7:06 am EST Jan 20, 2026
Forecast Valid:
8am EST Jan 20, 2026-6pm EST Jan 26, 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