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.

Fog

46°F

8°C

Humidity 100%
Wind Speed Calm
Barometer 29.81 in (1009.6 mb)
Dewpoint 46°F (8°C)
Visibility 0.50 mi
Last update 8 Mar 5:56 am EDT
Extended Forecast for

Duncannon PA

  • Today

    Today: Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 64. Southwest wind 5 to 9 mph becoming west in the morning. Winds could gust as high as 20 mph.

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. Light southwest wind.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.

    High: 50 °F

    Showers
    Likely

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 64. Southwest wind 5 to 9 mph becoming west in the morning. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 40. Light southwest wind.
Monday
Sunny, with a high near 68. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Wednesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Thursday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 29.
Friday
Partly sunny, with a high near 50.
Friday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 50.
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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:
6:11 am EDT Mar 8, 2026
Forecast Valid:
6am EDT Mar 8, 2026-6pm EDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation