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.

Overcast

47°F

8°C

Humidity 90%
Wind Speed NW 12 mph
Barometer 29.74 in (1007.0 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 23 Mar 7:56 am EDT
Extended Forecast for

Duncannon PA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 48. Northwest wind 7 to 14 mph, with gusts as high as 25 mph.

    High: 48 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Partly cloudy, with a low around 30. Northwest wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 58. Calm wind becoming south 5 to 9 mph in the morning.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.

    Low: 46 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.

    High: 52 °F

    Showers
    Likely then
    Chance
    Showers

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 48. Northwest wind 7 to 14 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 30. Northwest wind 6 to 9 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 50. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 31. Calm wind.
Wednesday
Partly sunny, with a high near 58. Calm wind becoming south 5 to 9 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Mostly cloudy, with a high near 66.
Thursday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.
Friday
Showers likely, mainly before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Duncannon PA
 40.4°N 77.02°W (Elev. 413 ft)
Last Update:
8:05 am EDT Mar 23, 2026
Forecast Valid:
8am EDT Mar 23, 2026-6pm EDT Mar 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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