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

60°F

16°C

Humidity 38%
Wind Speed SE 13 G 22 mph
Barometer 30.26 in (1024.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 12 Apr 8:56 pm EDT
Extended Forecast for

Duncannon PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Southeast wind 6 to 9 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers, mainly after 11am. Mostly cloudy, with a high near 77. Southeast wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 77 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. West wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers after 2pm. Mostly sunny, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 62. Light southwest wind. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 20%.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. Southeast wind 6 to 9 mph, with gusts as high as 24 mph.
Monday
A chance of showers, mainly after 11am. Mostly cloudy, with a high near 77. Southeast wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 57. West wind around 6 mph becoming calm in the evening.
Tuesday
A chance of showers after 2pm. Mostly sunny, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 62. Light southwest wind. Chance of precipitation is 30%.
Wednesday
A slight chance of showers after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 62.
Thursday
Partly sunny, with a high near 86.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 40%.
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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:
8:06 pm EDT Apr 12, 2026
Forecast Valid:
9pm EDT Apr 12, 2026-6pm EDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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