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.

Fog/Mist

40°F

4°C

Humidity 97%
Wind Speed N 3 mph
Barometer 29.85 in (1011.2 mb)
Dewpoint 39°F (4°C)
Visibility 3.00 mi
Last update 10 Jan 7:56 pm EST
Extended Forecast for

Duncannon PA

  • Tonight

    Tonight: A chance of rain, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 34. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow showers between 1pm and 2pm, then a slight chance of snow showers after 2pm. Mostly sunny, with a high near 41. West wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 20%.

    High: 41 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. West wind 11 to 15 mph, with gusts as high as 32 mph.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Southwest wind around 5 mph becoming calm in the evening.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 34. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A slight chance of rain and snow showers between 1pm and 2pm, then a slight chance of snow showers after 2pm. Mostly sunny, with a high near 41. West wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 28. West wind 11 to 15 mph, with gusts as high as 32 mph.
Monday
Mostly sunny, with a high near 41. West wind 8 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 28. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 32.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 34.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 37.
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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:
7:11 pm EST Jan 10, 2026
Forecast Valid:
8pm EST Jan 10, 2026-6pm EST Jan 17, 2026
 
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Additional Resources

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Chance of Precipitation