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

74°F

23°C

Humidity 54%
Wind Speed S 9 mph
Barometer 30.06 in (1018.1 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 4 Nov 12:56 pm EST
Extended Forecast for

Duncannon PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 74. Southeast wind around 8 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers, mainly after 3am. Low around 61. East wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 61 °F

    Mostly Cloudy
    then Showers

  • Thursday

    Thursday: Showers before 3pm, then a slight chance of showers after 4pm. High near 74. Southeast wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 74 °F

    Showers then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers before 8pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 52. Calm wind. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 68. Calm wind.

    High: 68 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 74. Southeast wind around 8 mph.
Tonight
Showers, mainly after 3am. Low around 61. East wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers before 3pm, then a slight chance of showers after 4pm. High near 74. Southeast wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A slight chance of showers before 8pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 52. Calm wind. Chance of precipitation is 20%.
Friday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 68. Calm wind.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 65.
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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:
1:20 pm EST Nov 4, 2026
Forecast Valid:
1pm EST Nov 4, 2026-6pm EST Nov 10, 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