National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

28°F

-2°C

Humidity 47%
Wind Speed NE 7 mph
Barometer 30.22 in (1023.9 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 26 Dec 4:56 am EST
Extended Forecast for

Duncannon PA

Winter Weather Advisory December 26, 12:00pm until December 27, 07:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Snow, freezing rain, and sleet likely before 4pm, then sleet between 4pm and 5pm, then freezing rain and sleet after 5pm. High near 31. Calm wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Total daytime ice accumulation of less than a 0.1 of an inch possible. Total daytime snow and sleet accumulation of less than a half inch possible.

    High: 31 °F

    Slight Chance
    Snow then
    Wintry Mix

  • Tonight

    Tonight: Freezing rain and sleet, mainly before 9pm. Low around 26. Southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New sleet accumulation of less than a half inch possible.

    Low: 26 °F

    Wintry Mix
    then Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 37. Calm wind.

    High: 37 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Cloudy

  • Sunday

    Sunday: A chance of rain or freezing rain before 10am, then rain showers likely. Cloudy, with a high near 39. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 39 °F

    Chance
    Rain/Freezing
    Rain then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers. Low around 36. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.

    High: 52 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

Detailed Forecast

Today
Snow, freezing rain, and sleet likely before 4pm, then sleet between 4pm and 5pm, then freezing rain and sleet after 5pm. High near 31. Calm wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Total daytime ice accumulation of less than a 0.1 of an inch possible. Total daytime snow and sleet accumulation of less than a half inch possible.
Tonight
Freezing rain and sleet, mainly before 9pm. Low around 26. Southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New sleet accumulation of less than a half inch possible.
Saturday
Mostly cloudy, with a high near 37. Calm wind.
Saturday Night
Cloudy, with a low around 27. Calm wind.
Sunday
A chance of rain or freezing rain before 10am, then rain showers likely. Cloudy, with a high near 39. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 36. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Mostly cloudy, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 22.
New Year's Day
Mostly cloudy, with a high near 29.
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:
2:26 am EST Dec 26, 2025
Forecast Valid:
5am EST Dec 26, 2025-6pm EST Jan 1, 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