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.

Thunderstorm in Vicinity

69°F

21°C

Humidity 90%
Wind Speed NW 12 G 20 mph
Barometer 29.75 in (1007.3 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 16 Oct 4:56 pm EDT
Extended Forecast for

3 Miles W Duncannon PA

Freeze Watch October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Freeze Watch

  • This Afternoon

    This Afternoon: A chance of showers. Mostly cloudy, with a high near 72. Northwest wind around 11 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers

  • Tonight

    Tonight: Increasing clouds, with a low around 45. Northwest wind 9 to 11 mph, with gusts as high as 28 mph.

    Low: 45 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 52. North wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 52 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 3am. Otherwise, clear, with a low around 32. North wind 5 to 7 mph becoming calm after midnight.

    Low: 32 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. Calm wind.

    High: 58 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 4am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers. Mostly cloudy, with a high near 72. Northwest wind around 11 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Increasing clouds, with a low around 45. Northwest wind 9 to 11 mph, with gusts as high as 28 mph.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 52. North wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Areas of frost after 3am. Otherwise, clear, with a low around 32. North wind 5 to 7 mph becoming calm after midnight.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. Calm wind.
Sunday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 34.
Monday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Duncannon PA
 40.41°N 77.08°W (Elev. 554 ft)
Last Update:
5:31 pm EDT Oct 16, 2026
Forecast Valid:
5pm EDT Oct 16, 2026-6pm EDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation