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

Hazardous Weather Conditions

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Overcast

37°F

3°C

Humidity 37%
Wind Speed W 20 G 29 mph
Barometer 29.97 in (1015.1 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 17 Mar 2:56 pm EDT
Extended Forecast for

Duncannon PA

  • This Afternoon

    This Afternoon: Scattered snow showers. Mostly cloudy, with a high near 35. West wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    High: 35 °F

    Scattered
    Snow Showers

  • Tonight

    Tonight: Scattered snow showers, mainly before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 21. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 21 °F

    Scattered
    Snow Showers
    then Mostly
    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39. Calm wind becoming south around 6 mph in the afternoon.

    High: 39 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 49. Calm wind becoming south around 6 mph in the afternoon.

    High: 49 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

    Low: 34 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.

    Low: 38 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Scattered snow showers. Mostly cloudy, with a high near 35. West wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Tonight
Scattered snow showers, mainly before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 21. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 39. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 26. Calm wind.
Thursday
Partly sunny, with a high near 49. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 52.
Friday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 62.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Duncannon PA
 40.4°N 77.02°W (Elev. 413 ft)
Last Update:
2:21 pm EDT Mar 17, 2026
Forecast Valid:
3pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation