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.

A Few Clouds

32°F

0°C

Humidity 52%
Wind Speed NW 8 mph
Barometer 30.36 in (1028.6 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 24 Mar 4:56 am EDT
Extended Forecast for

Duncannon PA

  • Today

    Today: Sunny, with a high near 50. North wind around 5 mph becoming calm in the morning.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 55. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 55 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43. South wind 3 to 5 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain after 2pm. Mostly cloudy, with a high near 69. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 69 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Rain, mainly after 8pm. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Rain

  • Friday

    Friday: Rain, mainly before 8am. High near 55. Chance of precipitation is 80%.

    High: 55 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 50. North wind around 5 mph becoming calm in the morning.
Tonight
Partly cloudy, with a low around 33. Calm wind.
Wednesday
Mostly cloudy, with a high near 55. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 43. South wind 3 to 5 mph.
Thursday
A slight chance of rain after 2pm. Mostly cloudy, with a high near 69. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Rain, mainly after 8pm. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 8am. High near 55. Chance of precipitation is 80%.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Partly sunny, with a high near 61.
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:
5:47 am EDT Mar 24, 2026
Forecast Valid:
5am EDT Mar 24, 2026-6pm EDT Mar 30, 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