Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

59°F

15°C

Humidity 87%
Wind Speed Calm
Barometer 30.08 in (1018.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 1 Oct 12:56 am EDT
Extended Forecast for

Duncannon PA

  • Overnight

    Overnight: Mostly clear, with a low around 52. North wind around 7 mph.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. North wind 7 to 9 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. North wind around 6 mph becoming calm  in the evening.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 69. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 73.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, sunny, with a high near 79.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Overnight
Mostly clear, with a low around 52. North wind around 7 mph.
Wednesday
Sunny, with a high near 71. North wind 7 to 9 mph.
Wednesday Night
Mostly clear, with a low around 41. North wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 69. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 45. Calm wind.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73.
Friday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 47.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 79.
Saturday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 50.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 80.
Sunday Night
Patchy fog. Otherwise, mostly clear, with a low around 53.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Duncannon PA
 40.4°N 77.02°W (Elev. 413 ft)
1:11 am EDT Oct 1, 2025
1am EDT Oct 1, 2025-6pm EDT Oct 7, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database